[GH-ISSUE #1680] Show nothing on interface. 打开后在界面上看不到任何东西 #503

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opened 2026-10-31 22:13:49 +00:00 by bsakaguchi · 3 comments
Owner

Originally created by @mikexjn on GitHub (Mar 27, 2026).
Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1680

Do nothing but restart the ComfyUI the interface shows nothing on it.
Have tried to re-install, uninstall then re-install, of course restart pc included. The problem still exsit.
Have already use the ComfyUI for months, the problem is suddenly occured.

就是重启了一下客户端之后,界面上什么都没有了
已经试了直接重装、卸载了再装,电脑也重启了好多次了都没什么用。
已经用了好几个月的ComfyUI了,之前没有发生过这种问题。

The printscreen is the interface what I can see now
截图就是现在我看到的界面
Image

┆Issue is synchronized with this Notion page by Unito

Originally created by @mikexjn on GitHub (Mar 27, 2026). Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1680 Do nothing but restart the ComfyUI the interface shows nothing on it. Have tried to re-install, uninstall then re-install, of course restart pc included. The problem still exsit. Have already use the ComfyUI for months, the problem is suddenly occured. 就是重启了一下客户端之后,界面上什么都没有了 已经试了直接重装、卸载了再装,电脑也重启了好多次了都没什么用。 已经用了好几个月的ComfyUI了,之前没有发生过这种问题。 The printscreen is the interface what I can see now 截图就是现在我看到的界面 <img width="2418" height="1542" alt="Image" src="https://github.com/user-attachments/assets/6b057291-1fc1-4062-9f2d-ae42329f1b6c" /> ┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-1680-Show-nothing-on-interface-3306d73d3650816fb24fd737af3684b2) by [Unito](https://www.unito.io)
Author
Owner

@dosubot[bot] commented on GitHub (Mar 27, 2026):

Hi @mikexjn! I'm Dosu and I’m helping the desktop team.

This is a known bug in ComfyUI Desktop on Windows that has been reported across multiple versions.

Quick fixes to try:

  1. Press Ctrl+R to manually refresh the UI — this is the most commonly reported workaround
  2. Close the app completely and reopen it (not just restart) — closing and reopening often works when restart causes a blank screen
  3. Disable "Show confirmation when closing window" in app settings — this can help prevent the issue

If those don't work:

  • Check your logs at C:\Users\<user>\AppData\Roaming\ComfyUI\logs\comfyui.log for errors
  • Try disabling all custom nodes temporarily to see if one of them is causing the issue

The root cause is often related to ComfyUI-Manager triggering internal restarts that the Electron shell doesn't handle properly, leaving the UI window blank.

To reply, just mention @dosu.


Share context across your team and agents. Try Dosu.

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<!-- gh-comment-id:4139881115 --> @dosubot[bot] commented on GitHub (Mar 27, 2026): <!-- Greeting --> Hi @mikexjn! I'm [Dosu](https://go.dosu.dev/dosubot) and I’m helping the desktop team. <!-- Answer --> This is a [known bug in ComfyUI Desktop on Windows](https://github.com/Comfy-Org/desktop/issues/1046) that has been reported across multiple versions. **Quick fixes to try:** 1. **Press `Ctrl+R`** to manually refresh the UI — this is the most commonly reported workaround 2. **Close the app completely and reopen it** (not just restart) — closing and reopening often works when restart causes a blank screen 3. **Disable "Show confirmation when closing window"** in app settings — this can help prevent the issue **If those don't work:** - Check your logs at `C:\Users\<user>\AppData\Roaming\ComfyUI\logs\comfyui.log` for errors - Try [disabling all custom nodes](https://github.com/Comfy-Org/desktop/issues/1443) temporarily to see if one of them is causing the issue The root cause is often related to ComfyUI-Manager triggering internal restarts that the Electron shell doesn't handle properly, leaving the UI window blank. <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=reply-with-mention&utm_term=Comfy-Org%2Fdesktop).* --- Share context across your team and agents. 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Author
Owner

@mikexjn commented on GitHub (Mar 27, 2026):

Hi @mikexjn! I'm Dosu and I’m helping the desktop team.

This is a known bug in ComfyUI Desktop on Windows that has been reported across multiple versions.

Quick fixes to try:

  1. Press Ctrl+R to manually refresh the UI — this is the most commonly reported workaround
  2. Close the app completely and reopen it (not just restart) — closing and reopening often works when restart causes a blank screen
  3. Disable "Show confirmation when closing window" in app settings — this can help prevent the issue

If those don't work:

  • Check your logs at C:\Users\<user>\AppData\Roaming\ComfyUI\logs\comfyui.log for errors
  • Try disabling all custom nodes temporarily to see if one of them is causing the issue

The root cause is often related to ComfyUI-Manager triggering internal restarts that the Electron shell doesn't handle properly, leaving the UI window blank.

To reply, just mention @dosu.

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[2026-03-27 11:13:52.108] [info] Adding extra search path custom_nodes C:\Users\Administrator\Documents\ComfyUI\custom_nodes
Adding extra search path download_model_base C:\Users\Administrator\Documents\ComfyUI\models

[2026-03-27 11:13:52.110] [info] Adding extra search path custom_nodes E:\comfyui\resources\ComfyUI\custom_nodes
Setting output directory to: C:\Users\Administrator\Documents\ComfyUI\output
Setting input directory to: C:\Users\Administrator\Documents\ComfyUI\input
Setting user directory to: C:\Users\Administrator\Documents\ComfyUI\user

[2026-03-27 11:13:53.126] [info] [START] Security scan
[DONE] Security scan
** ComfyUI startup time: 2026-03-27 11:13:53.127

[2026-03-27 11:13:53.128] [info] ** Platform: Windows
** Python version: 3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)]
** Python executable: C:\Users\Administrator\Documents\ComfyUI.venv\Scripts\python.exe
** ComfyUI Path: E:\comfyui\resources\ComfyUI
** ComfyUI Base Folder Path: E:\comfyui\resources\ComfyUI
** User directory: C:\Users\Administrator\Documents\ComfyUI\user
** ComfyUI-Manager config path: C:\Users\Administrator\Documents\ComfyUI\user__manager\config.ini
** Log path: C:\Users\Administrator\Documents\ComfyUI\user\comfyui.log

[2026-03-27 11:13:53.736] [info] [ComfyUI-Manager] Skipped fixing the 'comfyui-frontend-package' dependency because the ComfyUI is outdated.

[2026-03-27 11:13:53.737] [info] [PRE] ComfyUI-Manager

[2026-03-27 11:13:55.653] [info] WARNING: You need pytorch with cu130 or higher to use optimized CUDA operations.

[2026-03-27 11:13:55.654] [info] Found comfy_kitchen backend triton: {'available': False, 'disabled': True, 'unavailable_reason': "ImportError: No module named 'triton'", 'capabilities': []}
Found comfy_kitchen backend eager: {'available': True, 'disabled': False, 'unavailable_reason': None, 'capabilities': ['apply_rope', 'apply_rope1', 'dequantize_mxfp8', 'dequantize_nvfp4', 'dequantize_per_tensor_fp8', 'quantize_mxfp8', 'quantize_nvfp4', 'quantize_per_tensor_fp8', 'scaled_mm_mxfp8', 'scaled_mm_nvfp4']}
Found comfy_kitchen backend cuda: {'available': True, 'disabled': True, 'unavailable_reason': None, 'capabilities': ['apply_rope', 'apply_rope1', 'dequantize_nvfp4', 'dequantize_per_tensor_fp8', 'quantize_mxfp8', 'quantize_nvfp4', 'quantize_per_tensor_fp8']}

[2026-03-27 11:13:55.659] [info] Checkpoint files will always be loaded safely.

[2026-03-27 11:13:55.732] [info] Total VRAM 16303 MB, total RAM 32595 MB

[2026-03-27 11:13:55.733] [info] pytorch version: 2.8.0+cu129
Set vram state to: NORMAL_VRAM
Device: cuda:0 NVIDIA GeForce RTX 5070 Ti : cudaMallocAsync

[2026-03-27 11:13:55.745] [info] Using async weight offloading with 2 streams

[2026-03-27 11:13:55.746] [info] Enabled pinned memory 14667.0

[2026-03-27 11:13:55.918] [info] Using pytorch attention

[2026-03-27 11:13:57.629] [error] aimdo: src-win/cuda-detour.c:77:INFO:aimdo_setup_hooks: found driver at 00007FF928C90000, installing 4 hooks

[2026-03-27 11:13:57.630] [info] DynamicVRAM support detected and enabled
Python version: 3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)]
ComfyUI version: 0.18.2
comfy-aimdo version: 0.2.12

[2026-03-27 11:13:57.631] [error] aimdo: src-win/cuda-detour.c:61:DEBUG:install_hook_entrys: hooks successfully installed
aimdo: src/control.c:69:INFO:comfy-aimdo inited for GPU: NVIDIA GeForce RTX 5070 Ti (VRAM: 16302 MB)

[2026-03-27 11:13:57.632] [info] comfy-kitchen version: 0.2.8
[Prompt Server] web root: E:\comfyui\resources\ComfyUI\web_custom_versions\desktop_app
Asset seeder disabled
[START] ComfyUI-Manager

[2026-03-27 11:13:57.740] [info] [ComfyUI-Manager] network_mode: public

[2026-03-27 11:13:57.748] [info] [ComfyUI-Manager] The matrix sharing feature has been disabled because the matrix-nio dependency is not installed.
To use this feature, please run the following command:
C:\Users\Administrator\Documents\ComfyUI.venv\Scripts\python.exe -m pip install matrix-nio

[2026-03-27 11:13:58.702] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-detail-daemon_init
.py", line 3, in
from .detail_daemon_node import DetailDaemonSamplerNode, DetailDaemonGraphSigmasNode, MultiplySigmas, LyingSigmaSamplerNode
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-detail-daemon\detail_daemon_node.py", line 14, in
import matplotlib.pyplot as plt
ModuleNotFoundError: No module named 'matplotlib'

[2026-03-27 11:13:58.703] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-detail-daemon module for custom nodes: No module named 'matplotlib'

[2026-03-27 11:13:58.809] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-easy-use_init
.py", line 19, in
imported_module = importlib.import_module(".py.nodes.{}".format(module_name), name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Administrator\AppData\Roaming\uv\python\cpython-3.12.11-windows-x86_64-none\Lib\importlib_init_.py", line 90, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 1387, in _gcd_import
File "", line 1360, in _find_and_load
File "", line 1331, in _find_and_load_unlocked
File "", line 935, in _load_unlocked
File "", line 999, in exec_module
File "", line 488, in _call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-easy-use\py\nodes\image.py", line 1777, in
import cv2
ModuleNotFoundError: No module named 'cv2'

[2026-03-27 11:13:58.810] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-easy-use module for custom nodes: No module named 'cv2'

[2026-03-27 11:13:58.811] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-florence2_init
.py", line 1, in
from .nodes import NODE_CLASS_MAPPINGS, NODE_DISPLAY_NAME_MAPPINGS
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-florence2\nodes.py", line 6, in
import matplotlib
ModuleNotFoundError: No module named 'matplotlib'

[2026-03-27 11:13:58.812] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-florence2 module for custom nodes: No module named 'matplotlib'

[2026-03-27 11:13:58.813] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF_init
.py", line 7, in
from .nodes import NODE_CLASS_MAPPINGS
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF\nodes.py", line 16, in
from .ops import GGMLOps, move_patch_to_device
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF\ops.py", line 2, in
import gguf
ModuleNotFoundError: No module named 'gguf'

[2026-03-27 11:13:58.814] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF module for custom nodes: No module named 'gguf'

[2026-03-27 11:13:58.816] [info] ### Loading: ComfyUI-Impact-Pack (V8.28.2)

[2026-03-27 11:13:58.817] [error] [Impact Pack] Failed to import due to several dependencies are missing!!!!

[2026-03-27 11:13:58.817] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-pack_init
.py", line 40, in
raise e
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-pack_init_.py", line 27, in
import cv2 # noqa: F401
^^^^^^^^^^
ModuleNotFoundError: No module named 'cv2'

Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-pack module for custom nodes: No module named 'cv2'

[2026-03-27 11:13:58.818] [info] ### Loading: ComfyUI-Impact-Subpack (V1.3.5)

[2026-03-27 11:13:58.820] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack_init
.py", line 23, in
imported_module = importlib.import_module(".modules.{}".format(module_name), name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Administrator\AppData\Roaming\uv\python\cpython-3.12.11-windows-x86_64-none\Lib\importlib_init_.py", line 90, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 1387, in _gcd_import
File "", line 1360, in _find_and_load
File "", line 1331, in _find_and_load_unlocked
File "", line 935, in _load_unlocked
File "", line 999, in exec_module
File "", line 488, in _call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack\modules\subpack_nodes.py", line 3, in
from . import subcore
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack\modules\subcore.py", line 3, in
import cv2
ModuleNotFoundError: No module named 'cv2'

[2026-03-27 11:13:58.821] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack module for custom nodes: No module named 'cv2'

[2026-03-27 11:13:58.827] [info] OpenCV not installed

[2026-03-27 11:13:58.830] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-kjnodes_init
.py", line 7, in
from .nodes.mask_nodes import *
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-kjnodes\nodes\mask_nodes.py", line 1314, in
import cv2
ModuleNotFoundError: No module named 'cv2'

[2026-03-27 11:13:58.830] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-kjnodes module for custom nodes: No module named 'cv2'

[2026-03-27 11:13:58.832] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata_init
.py", line 1, in
from .py.nodes.node import SaveImageWithMetaData
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata\py_init_.py", line 3, in
from .hook import pre_execute, pre_get_input_data
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata\py\hook.py", line 1, in
from .nodes.node import SaveImageWithMetaData
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata\py\nodes\node.py", line 11, in
import piexif
ModuleNotFoundError: No module named 'piexif'

[2026-03-27 11:13:58.833] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata module for custom nodes: No module named 'piexif'

[2026-03-27 11:13:58.836] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_controlnet_aux_init
.py", line 7, in
from .utils import here, define_preprocessor_inputs, INPUT
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_controlnet_aux\utils.py", line 4, in
import cv2
ModuleNotFoundError: No module named 'cv2'

[2026-03-27 11:13:58.837] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_controlnet_aux module for custom nodes: No module named 'cv2'

[2026-03-27 11:13:58.860] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension_init
.py", line 1, in
from .modules.nodes.node import SaveImageWithMetaData, CreateExtraMetaData
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension\modules_init_.py", line 3, in
from .hook import pre_execute, pre_get_input_data
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension\modules\hook.py", line 1, in
from .nodes.node import SaveImageWithMetaData
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension\modules\nodes\node.py", line 8, in
import piexif
ModuleNotFoundError: No module named 'piexif'

[2026-03-27 11:13:58.861] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension module for custom nodes: No module named 'piexif'

[2026-03-27 11:13:58.864] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_LLM_party_init
.py", line 15, in
from .config_update import update_config
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_LLM_party\config_update.py", line 5, in
import openai
ModuleNotFoundError: No module named 'openai'

[2026-03-27 11:13:58.865] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_LLM_party module for custom nodes: No module named 'openai'

[2026-03-27 11:13:58.872] [error] USDU batch patches applied successfully.

[2026-03-27 11:13:58.872] [info] USDU batch patches applied successfully.

[2026-03-27 11:13:58.890] [info]
[rgthree-comfy] Loaded 48 fantastic nodes. 🎉

[2026-03-27 11:13:58.891] [info] [rgthree-comfy] ComfyUI's new Node 2.0 rendering may be incompatible with some rgthree-comfy nodes and features, breaking some rendering as well as losing the ability to access a node's properties (a vital part of many nodes). It also appears to run MUCH more slowly spiking CPU usage and causing jankiness and unresponsiveness, especially with large workflows. Personally I am not planning to use the new Nodes 2.0 and, unfortunately, am not able to invest the time to investigate and overhaul rgthree-comfy where needed. If you have issues when Nodes 2.0 is enabled, I'd urge you to switch it off as well and join me in hoping ComfyUI is not planning to deprecate the existing, stable canvas rendering all together.

[2026-03-27 11:13:58.895] [info] ⚠️ SeedVR2 optimizations check: SageAttention ❌ | Flash Attention ❌ | Triton ❌
💡 For best performance: pip install sageattention flash-attn triton
[2026-03-27 11:13:58.896] [info]

[2026-03-27 11:13:58.987] [info] 📊 Initial CUDA memory: 14.63GB free / 15.92GB total

[2026-03-27 11:13:58.997] [info] Traceback (most recent call last):
File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler_init
.py", line 7, in
from .src.interfaces import comfy_entrypoint, SeedVR2Extension
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\interfaces_init_.py", line 8, in
from .video_upscaler import SeedVR2VideoUpscaler
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\interfaces\video_upscaler.py", line 10, in
from ..utils.downloads import download_weight
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\utils\downloads.py", line 14, in
from .model_registry import MODEL_REGISTRY, DEFAULT_VAE
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\utils\model_registry.py", line 12, in
from ..models.dit_3b.nadit import NaDiT as NaDiT3B
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\models\dit_3b\nadit.py", line 24, in
from .embedding import TimeEmbedding
File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\models\dit_3b\embedding.py", line 17, in
from diffusers.models.embeddings import get_timestep_embedding
File "C:\Users\Administrator\Documents\ComfyUI.venv\Lib\site-packages\diffusers_init_.py", line 5, in
from .utils import (
File "C:\Users\Administrator\Documents\ComfyUI.venv\Lib\site-packages\diffusers\utils_init_.py", line 38, in
from .dynamic_modules_utils import get_class_from_dynamic_module
File "C:\Users\Administrator\Documents\ComfyUI.venv\Lib\site-packages\diffusers\utils\dynamic_modules_utils.py", line 28, in
from huggingface_hub import cached_download, hf_hub_download, model_info
ImportError: cannot import name 'cached_download' from 'huggingface_hub' (C:\Users\Administrator\Documents\ComfyUI.venv\Lib\site-packages\huggingface_hub_init_.py). Did you mean: 'hf_hub_download'?

[2026-03-27 11:13:58.998] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler module for custom nodes: cannot import name 'cached_download' from 'huggingface_hub' (C:\Users\Administrator\Documents\ComfyUI.venv\Lib\site-packages\huggingface_hub_init_.py)
Blocked by policy: E:\comfyui\resources\ComfyUI\custom_nodes\ComfyUI-Manager

Import times for custom nodes:
0.0 seconds: E:\comfyui\resources\ComfyUI\custom_nodes\websocket_image_save.py
0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\Comfyui-ZiT-Lora-loader
0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_controlnet_aux
0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-detail-daemon
0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF
0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-florence2
0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata
0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension
0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack
0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-pack

[2026-03-27 11:13:58.999] [info] 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_LLM_party
0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-custom-scripts
0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-kjnodes
0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_ultimatesdupscale
0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\rgthree-comfy
0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_essentials
0.1 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler
0.1 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-easy-use

[2026-03-27 11:13:59.002] [info] Context impl SQLiteImpl.

[2026-03-27 11:13:59.003] [info] Will assume non-transactional DDL.

[2026-03-27 11:13:59.175] [info] Starting server

[2026-03-27 11:13:59.176] [info] To see the GUI go to: http://127.0.0.1:6000

[2026-03-27 11:16:06.765] [info] FETCH ComfyRegistry Data [DONE]

[2026-03-27 11:16:06.966] [info] [ComfyUI-Manager] default cache updated: https://api.comfy.org/nodes

[2026-03-27 11:16:07.006] [info] FETCH DATA from: C:\Users\Administrator\Documents\ComfyUI\user__manager\cache\1514988643_custom-node-list.json
[2026-03-27 11:16:07.024] [info] [DONE]

[2026-03-27 11:16:07.067] [info] [ComfyUI-Manager] All startup tasks have been completed.

@dosu._

<!-- gh-comment-id:4139904998 --> @mikexjn commented on GitHub (Mar 27, 2026): > Hi [@mikexjn](https://github.com/mikexjn)! I'm [Dosu](https://go.dosu.dev/dosubot) and I’m helping the desktop team. > > This is a [known bug in ComfyUI Desktop on Windows](https://github.com/Comfy-Org/desktop/issues/1046) that has been reported across multiple versions. > > **Quick fixes to try:** > > 1. **Press `Ctrl+R`** to manually refresh the UI — this is the most commonly reported workaround > 2. **Close the app completely and reopen it** (not just restart) — closing and reopening often works when restart causes a blank screen > 3. **Disable "Show confirmation when closing window"** in app settings — this can help prevent the issue > > **If those don't work:** > > * Check your logs at `C:\Users\<user>\AppData\Roaming\ComfyUI\logs\comfyui.log` for errors > * Try [disabling all custom nodes](https://github.com/Comfy-Org/desktop/issues/1443) temporarily to see if one of them is causing the issue > > The root cause is often related to ComfyUI-Manager triggering internal restarts that the Electron shell doesn't handle properly, leaving the UI window blank. > > _To reply, just mention [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=brand-link)._ > > How did I do? [Good](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=great_response&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=irrelevant_answer&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=incorrect_sources&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=too_verbose&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-too_verbose) | 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extra search path custom_nodes E:\comfyui\resources\ComfyUI\custom_nodes Setting output directory to: C:\Users\Administrator\Documents\ComfyUI\output Setting input directory to: C:\Users\Administrator\Documents\ComfyUI\input Setting user directory to: C:\Users\Administrator\Documents\ComfyUI\user [2026-03-27 11:13:53.126] [info] [START] Security scan [DONE] Security scan ** ComfyUI startup time: 2026-03-27 11:13:53.127 [2026-03-27 11:13:53.128] [info] ** Platform: Windows ** Python version: 3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)] ** Python executable: C:\Users\Administrator\Documents\ComfyUI\.venv\Scripts\python.exe ** ComfyUI Path: E:\comfyui\resources\ComfyUI ** ComfyUI Base Folder Path: E:\comfyui\resources\ComfyUI ** User directory: C:\Users\Administrator\Documents\ComfyUI\user ** ComfyUI-Manager config path: C:\Users\Administrator\Documents\ComfyUI\user\__manager\config.ini ** Log path: C:\Users\Administrator\Documents\ComfyUI\user\comfyui.log [2026-03-27 11:13:53.736] [info] [ComfyUI-Manager] Skipped fixing the 'comfyui-frontend-package' dependency because the ComfyUI is outdated. [2026-03-27 11:13:53.737] [info] [PRE] ComfyUI-Manager [2026-03-27 11:13:55.653] [info] WARNING: You need pytorch with cu130 or higher to use optimized CUDA operations. [2026-03-27 11:13:55.654] [info] Found comfy_kitchen backend triton: {'available': False, 'disabled': True, 'unavailable_reason': "ImportError: No module named 'triton'", 'capabilities': []} Found comfy_kitchen backend eager: {'available': True, 'disabled': False, 'unavailable_reason': None, 'capabilities': ['apply_rope', 'apply_rope1', 'dequantize_mxfp8', 'dequantize_nvfp4', 'dequantize_per_tensor_fp8', 'quantize_mxfp8', 'quantize_nvfp4', 'quantize_per_tensor_fp8', 'scaled_mm_mxfp8', 'scaled_mm_nvfp4']} Found comfy_kitchen backend cuda: {'available': True, 'disabled': True, 'unavailable_reason': None, 'capabilities': ['apply_rope', 'apply_rope1', 'dequantize_nvfp4', 'dequantize_per_tensor_fp8', 'quantize_mxfp8', 'quantize_nvfp4', 'quantize_per_tensor_fp8']} [2026-03-27 11:13:55.659] [info] Checkpoint files will always be loaded safely. [2026-03-27 11:13:55.732] [info] Total VRAM 16303 MB, total RAM 32595 MB [2026-03-27 11:13:55.733] [info] pytorch version: 2.8.0+cu129 Set vram state to: NORMAL_VRAM Device: cuda:0 NVIDIA GeForce RTX 5070 Ti : cudaMallocAsync [2026-03-27 11:13:55.745] [info] Using async weight offloading with 2 streams [2026-03-27 11:13:55.746] [info] Enabled pinned memory 14667.0 [2026-03-27 11:13:55.918] [info] Using pytorch attention [2026-03-27 11:13:57.629] [error] aimdo: src-win/cuda-detour.c:77:INFO:aimdo_setup_hooks: found driver at 00007FF928C90000, installing 4 hooks [2026-03-27 11:13:57.630] [info] DynamicVRAM support detected and enabled Python version: 3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)] ComfyUI version: 0.18.2 comfy-aimdo version: 0.2.12 [2026-03-27 11:13:57.631] [error] aimdo: src-win/cuda-detour.c:61:DEBUG:install_hook_entrys: hooks successfully installed aimdo: src/control.c:69:INFO:comfy-aimdo inited for GPU: NVIDIA GeForce RTX 5070 Ti (VRAM: 16302 MB) [2026-03-27 11:13:57.632] [info] comfy-kitchen version: 0.2.8 [Prompt Server] web root: E:\comfyui\resources\ComfyUI\web_custom_versions\desktop_app Asset seeder disabled [START] ComfyUI-Manager [2026-03-27 11:13:57.740] [info] [ComfyUI-Manager] network_mode: public [2026-03-27 11:13:57.748] [info] [ComfyUI-Manager] The matrix sharing feature has been disabled because the `matrix-nio` dependency is not installed. To use this feature, please run the following command: C:\Users\Administrator\Documents\ComfyUI\.venv\Scripts\python.exe -m pip install matrix-nio [2026-03-27 11:13:58.702] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-detail-daemon\__init__.py", line 3, in <module> from .detail_daemon_node import DetailDaemonSamplerNode, DetailDaemonGraphSigmasNode, MultiplySigmas, LyingSigmaSamplerNode File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-detail-daemon\detail_daemon_node.py", line 14, in <module> import matplotlib.pyplot as plt ModuleNotFoundError: No module named 'matplotlib' [2026-03-27 11:13:58.703] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-detail-daemon module for custom nodes: No module named 'matplotlib' [2026-03-27 11:13:58.809] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-easy-use\__init__.py", line 19, in <module> imported_module = importlib.import_module(".py.nodes.{}".format(module_name), __name__) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\Administrator\AppData\Roaming\uv\python\cpython-3.12.11-windows-x86_64-none\Lib\importlib\__init__.py", line 90, in import_module return _bootstrap._gcd_import(name[level:], package, level) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "<frozen importlib._bootstrap>", line 1387, in _gcd_import File "<frozen importlib._bootstrap>", line 1360, in _find_and_load File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 935, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-easy-use\py\nodes\image.py", line 1777, in <module> import cv2 ModuleNotFoundError: No module named 'cv2' [2026-03-27 11:13:58.810] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-easy-use module for custom nodes: No module named 'cv2' [2026-03-27 11:13:58.811] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-florence2\__init__.py", line 1, in <module> from .nodes import NODE_CLASS_MAPPINGS, NODE_DISPLAY_NAME_MAPPINGS File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-florence2\nodes.py", line 6, in <module> import matplotlib ModuleNotFoundError: No module named 'matplotlib' [2026-03-27 11:13:58.812] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-florence2 module for custom nodes: No module named 'matplotlib' [2026-03-27 11:13:58.813] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF\__init__.py", line 7, in <module> from .nodes import NODE_CLASS_MAPPINGS File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF\nodes.py", line 16, in <module> from .ops import GGMLOps, move_patch_to_device File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF\ops.py", line 2, in <module> import gguf ModuleNotFoundError: No module named 'gguf' [2026-03-27 11:13:58.814] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF module for custom nodes: No module named 'gguf' [2026-03-27 11:13:58.816] [info] ### Loading: ComfyUI-Impact-Pack (V8.28.2) [2026-03-27 11:13:58.817] [error] [Impact Pack] Failed to import due to several dependencies are missing!!!! [2026-03-27 11:13:58.817] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-pack\__init__.py", line 40, in <module> raise e File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-pack\__init__.py", line 27, in <module> import cv2 # noqa: F401 ^^^^^^^^^^ ModuleNotFoundError: No module named 'cv2' Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-pack module for custom nodes: No module named 'cv2' [2026-03-27 11:13:58.818] [info] ### Loading: ComfyUI-Impact-Subpack (V1.3.5) [2026-03-27 11:13:58.820] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack\__init__.py", line 23, in <module> imported_module = importlib.import_module(".modules.{}".format(module_name), __name__) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\Administrator\AppData\Roaming\uv\python\cpython-3.12.11-windows-x86_64-none\Lib\importlib\__init__.py", line 90, in import_module return _bootstrap._gcd_import(name[level:], package, level) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "<frozen importlib._bootstrap>", line 1387, in _gcd_import File "<frozen importlib._bootstrap>", line 1360, in _find_and_load File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 935, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack\modules\subpack_nodes.py", line 3, in <module> from . import subcore File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack\modules\subcore.py", line 3, in <module> import cv2 ModuleNotFoundError: No module named 'cv2' [2026-03-27 11:13:58.821] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack module for custom nodes: No module named 'cv2' [2026-03-27 11:13:58.827] [info] OpenCV not installed [2026-03-27 11:13:58.830] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-kjnodes\__init__.py", line 7, in <module> from .nodes.mask_nodes import * File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-kjnodes\nodes\mask_nodes.py", line 1314, in <module> import cv2 ModuleNotFoundError: No module named 'cv2' [2026-03-27 11:13:58.830] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-kjnodes module for custom nodes: No module named 'cv2' [2026-03-27 11:13:58.832] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata\__init__.py", line 1, in <module> from .py.nodes.node import SaveImageWithMetaData File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata\py\__init__.py", line 3, in <module> from .hook import pre_execute, pre_get_input_data File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata\py\hook.py", line 1, in <module> from .nodes.node import SaveImageWithMetaData File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata\py\nodes\node.py", line 11, in <module> import piexif ModuleNotFoundError: No module named 'piexif' [2026-03-27 11:13:58.833] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata module for custom nodes: No module named 'piexif' [2026-03-27 11:13:58.836] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_controlnet_aux\__init__.py", line 7, in <module> from .utils import here, define_preprocessor_inputs, INPUT File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_controlnet_aux\utils.py", line 4, in <module> import cv2 ModuleNotFoundError: No module named 'cv2' [2026-03-27 11:13:58.837] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_controlnet_aux module for custom nodes: No module named 'cv2' [2026-03-27 11:13:58.860] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension\__init__.py", line 1, in <module> from .modules.nodes.node import SaveImageWithMetaData, CreateExtraMetaData File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension\modules\__init__.py", line 3, in <module> from .hook import pre_execute, pre_get_input_data File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension\modules\hook.py", line 1, in <module> from .nodes.node import SaveImageWithMetaData File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension\modules\nodes\node.py", line 8, in <module> import piexif ModuleNotFoundError: No module named 'piexif' [2026-03-27 11:13:58.861] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension module for custom nodes: No module named 'piexif' [2026-03-27 11:13:58.864] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_LLM_party\__init__.py", line 15, in <module> from .config_update import update_config File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_LLM_party\config_update.py", line 5, in <module> import openai ModuleNotFoundError: No module named 'openai' [2026-03-27 11:13:58.865] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_LLM_party module for custom nodes: No module named 'openai' [2026-03-27 11:13:58.872] [error] USDU batch patches applied successfully. [2026-03-27 11:13:58.872] [info] USDU batch patches applied successfully. [2026-03-27 11:13:58.890] [info] [rgthree-comfy] Loaded 48 fantastic nodes. 🎉 [2026-03-27 11:13:58.891] [info] [rgthree-comfy] ComfyUI's new Node 2.0 rendering may be incompatible with some rgthree-comfy nodes and features, breaking some rendering as well as losing the ability to access a node's properties (a vital part of many nodes). It also appears to run MUCH more slowly spiking CPU usage and causing jankiness and unresponsiveness, especially with large workflows. Personally I am not planning to use the new Nodes 2.0 and, unfortunately, am not able to invest the time to investigate and overhaul rgthree-comfy where needed. If you have issues when Nodes 2.0 is enabled, I'd urge you to switch it off as well and join me in hoping ComfyUI is not planning to deprecate the existing, stable canvas rendering all together. [2026-03-27 11:13:58.895] [info] ⚠️ SeedVR2 optimizations check: SageAttention ❌ | Flash Attention ❌ | Triton ❌ 💡 For best performance: pip install sageattention flash-attn triton [2026-03-27 11:13:58.896] [info] [2026-03-27 11:13:58.987] [info] 📊 Initial CUDA memory: 14.63GB free / 15.92GB total [2026-03-27 11:13:58.997] [info] Traceback (most recent call last): File "E:\comfyui\resources\ComfyUI\nodes.py", line 2227, in load_custom_node module_spec.loader.exec_module(module) File "<frozen importlib._bootstrap_external>", line 999, in exec_module File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\__init__.py", line 7, in <module> from .src.interfaces import comfy_entrypoint, SeedVR2Extension File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\interfaces\__init__.py", line 8, in <module> from .video_upscaler import SeedVR2VideoUpscaler File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\interfaces\video_upscaler.py", line 10, in <module> from ..utils.downloads import download_weight File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\utils\downloads.py", line 14, in <module> from .model_registry import MODEL_REGISTRY, DEFAULT_VAE File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\utils\model_registry.py", line 12, in <module> from ..models.dit_3b.nadit import NaDiT as NaDiT3B File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\models\dit_3b\nadit.py", line 24, in <module> from .embedding import TimeEmbedding File "C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler\src\models\dit_3b\embedding.py", line 17, in <module> from diffusers.models.embeddings import get_timestep_embedding File "C:\Users\Administrator\Documents\ComfyUI\.venv\Lib\site-packages\diffusers\__init__.py", line 5, in <module> from .utils import ( File "C:\Users\Administrator\Documents\ComfyUI\.venv\Lib\site-packages\diffusers\utils\__init__.py", line 38, in <module> from .dynamic_modules_utils import get_class_from_dynamic_module File "C:\Users\Administrator\Documents\ComfyUI\.venv\Lib\site-packages\diffusers\utils\dynamic_modules_utils.py", line 28, in <module> from huggingface_hub import cached_download, hf_hub_download, model_info ImportError: cannot import name 'cached_download' from 'huggingface_hub' (C:\Users\Administrator\Documents\ComfyUI\.venv\Lib\site-packages\huggingface_hub\__init__.py). Did you mean: 'hf_hub_download'? [2026-03-27 11:13:58.998] [info] Cannot import C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler module for custom nodes: cannot import name 'cached_download' from 'huggingface_hub' (C:\Users\Administrator\Documents\ComfyUI\.venv\Lib\site-packages\huggingface_hub\__init__.py) Blocked by policy: E:\comfyui\resources\ComfyUI\custom_nodes\ComfyUI-Manager Import times for custom nodes: 0.0 seconds: E:\comfyui\resources\ComfyUI\custom_nodes\websocket_image_save.py 0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\Comfyui-ZiT-Lora-loader 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_controlnet_aux 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-detail-daemon 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\ComfyUI-GGUF 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-florence2 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-saveimagewithmetadata 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_image_metadata_extension 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-subpack 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-impact-pack [2026-03-27 11:13:58.999] [info] 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_LLM_party 0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-custom-scripts 0.0 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-kjnodes 0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_ultimatesdupscale 0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\rgthree-comfy 0.0 seconds: C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui_essentials 0.1 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\seedvr2_videoupscaler 0.1 seconds (IMPORT FAILED): C:\Users\Administrator\Documents\ComfyUI\custom_nodes\comfyui-easy-use [2026-03-27 11:13:59.002] [info] Context impl SQLiteImpl. [2026-03-27 11:13:59.003] [info] Will assume non-transactional DDL. [2026-03-27 11:13:59.175] [info] Starting server [2026-03-27 11:13:59.176] [info] To see the GUI go to: http://127.0.0.1:6000 [2026-03-27 11:16:06.765] [info] FETCH ComfyRegistry Data [DONE] [2026-03-27 11:16:06.966] [info] [ComfyUI-Manager] default cache updated: https://api.comfy.org/nodes [2026-03-27 11:16:07.006] [info] FETCH DATA from: C:\Users\Administrator\Documents\ComfyUI\user\__manager\cache\1514988643_custom-node-list.json [2026-03-27 11:16:07.024] [info] [DONE] [2026-03-27 11:16:07.067] [info] [ComfyUI-Manager] All startup tasks have been completed. [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=brand-link)._
Author
Owner

@mikexjn commented on GitHub (Mar 27, 2026):

Hi @mikexjn! I'm Dosu and I’m helping the desktop team.

This is a known bug in ComfyUI Desktop on Windows that has been reported across multiple versions.

Quick fixes to try:

  1. Press Ctrl+R to manually refresh the UI — this is the most commonly reported workaround
  2. Close the app completely and reopen it (not just restart) — closing and reopening often works when restart causes a blank screen
  3. Disable "Show confirmation when closing window" in app settings — this can help prevent the issue

If those don't work:

  • Check your logs at C:\Users\<user>\AppData\Roaming\ComfyUI\logs\comfyui.log for errors
  • Try disabling all custom nodes temporarily to see if one of them is causing the issue

The root cause is often related to ComfyUI-Manager triggering internal restarts that the Electron shell doesn't handle properly, leaving the UI window blank.

To reply, just mention @dosu.

How did I do? Good | Irrelevant | Incorrect | Verbose | Hallucination | Report 🐛 | Other

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how to disable custom nodes when i can see nothing on interface? Directly delete from folder?
@dosu._

<!-- gh-comment-id:4139909064 --> @mikexjn commented on GitHub (Mar 27, 2026): > Hi [@mikexjn](https://github.com/mikexjn)! I'm [Dosu](https://go.dosu.dev/dosubot) and I’m helping the desktop team. > > This is a [known bug in ComfyUI Desktop on Windows](https://github.com/Comfy-Org/desktop/issues/1046) that has been reported across multiple versions. > > **Quick fixes to try:** > > 1. **Press `Ctrl+R`** to manually refresh the UI — this is the most commonly reported workaround > 2. **Close the app completely and reopen it** (not just restart) — closing and reopening often works when restart causes a blank screen > 3. **Disable "Show confirmation when closing window"** in app settings — this can help prevent the issue > > **If those don't work:** > > * Check your logs at `C:\Users\<user>\AppData\Roaming\ComfyUI\logs\comfyui.log` for errors > * Try [disabling all custom nodes](https://github.com/Comfy-Org/desktop/issues/1443) temporarily to see if one of them is causing the issue > > The root cause is often related to ComfyUI-Manager triggering internal restarts that the Electron shell doesn't handle properly, leaving the UI window blank. > > _To reply, just mention [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=brand-link)._ > > How did I do? [Good](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=great_response&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=irrelevant_answer&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=incorrect_sources&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=too_verbose&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=hallucination&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=bug_report&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-bug_report) | [Other](https://app.dosu.dev/response-feedback/e4d26029-453c-4806-ad74-05ed7e31c6ca?feedback_type=other&utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=feedback-other) > > [![Chat with Dosu](https://camo.githubusercontent.com/7c571478962a6b8a5d47cac74b6824c75e4f6731bba52377e6007f9150462923/68747470733a2f2f646f73752e6465762f646f73752d636861742d62616467652e737667)](https://app.dosu.dev/b5ba5ada-382a-44fa-8252-24bddb1098d9/ask?utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=chat-badge) [![Open in Cursor](https://camo.githubusercontent.com/bdf7dbded65ee585887f47e5fd6fa099ea0933088b4b03d02e83b4def50154d4/68747470733a2f2f646f73752e6465762f646f73752d696e2d637572736f722e737667)](https://cursor.com/link/prompt?text=This%20is%20a%20%5Bknown%20bug%20in%20ComfyUI%20Desktop%20on%20Windows%5D%28https%3A//github.com/Comfy-Org/desktop/issues/1046%29%20that%20has%20been%20reported%20across%20multiple%20versions.%0A%0A%2A%2AQuick%20fixes%20to%20try%3A%2A%2A%0A1.%20%2A%2APress%20%60Ctrl%2BR%60%2A%2A%20to%20manually%20refresh%20the%20UI%20%E2%80%94%20this%20is%20the%20most%20commonly%20reported%20workaround%0A2.%20%2A%2AClose%20the%20app%20completely%20and%20reopen%20it%2A%2A%20%28not%20just%20restart%29%20%E2%80%94%20closing%20and%20reopening%20often%20works%20when%20restart%20causes%20a%20blank%20screen%0A3.%20%2A%2ADisable%20%22Show%20confirmation%20when%20closing%20window%22%2A%2A%20in%20app%20settings%20%E2%80%94%20this%20can%20help%20prevent%20the%20issue%0A%0A%2A%2AIf%20those%20don%27t%20work%3A%2A%2A%0A-%20Check%20your%20logs%20at%20%60C%3A%5CUsers%5C%3Cuser%3E%5CAppData%5CRoaming%5CComfyUI%5Clogs%5Ccomfyui.log%60%20for%20errors%0A-%20Try%20%5Bdisabling%20all%20custom%20nodes%5D%28https%3A//github.com/Comfy-Org/desktop/issues/1443%29%20temporarily%20to%20see%20if%20one%20of%20them%20is%20causing%20the%20issue%0A%0AThe%20root%20cause%20is%20often%20related%20to%20ComfyUI-Manager%20triggering%20internal%20restarts%20that%20the%20Electron%20shell%20doesn%27t%20handle%20properly%2C%20leaving%20the%20UI%20window%20blank.) [![Join Discord](https://camo.githubusercontent.com/7d2066700925db1e370d956834f9ea0e5bc92cecbe84963fbd2a363e45091b4e/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6a6f696e2d3538363546323f6c6f676f3d646973636f7264266c6f676f436f6c6f723d7768697465266c6162656c3d)](https://go.dosu.dev/discord-bot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=join-discord) [![Share on X](https://camo.githubusercontent.com/a8bd7f3fcf3f5e3bd124eee9ae50ae2ac17b40971726665ac2121d48f9aee155/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f582d73686172652d626c61636b)](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/Comfy-Org/desktop/issues/1680) how to disable custom nodes when i can see nothing on interface? Directly delete from folder? [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-assistant&utm_content=brand-link)._
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Comfy-Org/desktop#503
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