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[GH-ISSUE #1697] [Bug]: ComfyUI Desktop crashes when dragging Pixaroma workflows onto canvas #509

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opened 2026-10-31 22:13:53 +00:00 by bsakaguchi · 0 comments
bsakaguchi commented 2026-10-31 22:13:53 +00:00
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Originally created by @radimov on GitHub (Apr 22, 2026).
Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1697

App Version

  • ComfyUI Desktop version: 0.8.34
  • ComfyUI version: 0.19.4
  • Frontend version: 1.42.10
  • OS: Windows 11
  • GPU: NVIDIA GeForce RTX 4070 Ti (12GB VRAM)
  • Python: 3.12.9
  • PyTorch: 2.9.1+cu130
  • Custom nodes involved: ComfyUI-Pixaroma v1.2.4, rgthree-comfy
  • Node 2.0 rendering: Disabled

Expected Behavior

Workflow loads normally, as it does in the browser.

Actual Behavior

ComfyUI Desktop freezes and closes. No Python-side error is logged in comfyui.log. The crash appears to occur in the Electron frontend layer, not in the Python backend.

Steps to Reproduce

  1. Download any workflow containing PixaromaImageComposition or PixaromaCompare nodes (e.g. from https://www.youtube.com/@pixaroma)
  2. Open ComfyUI Desktop
  3. Drag the .json workflow file onto the canvas
  4. App freezes

Debug Logs

[2026-04-22 10:12:29.053] [info]  Adding extra search path custom_nodes C:\ComfyUI\custom_nodes
Adding extra search path download_model_base C:\ComfyUI\models
Adding extra search path custom_nodes E:\ComfyUI\resources\ComfyUI\custom_nodes
Setting output directory to: C:\ComfyUI\output

[2026-04-22 10:12:29.055] [info]  Setting input directory to: C:\ComfyUI\input
Setting user directory to: C:\ComfyUI\user

[2026-04-22 10:12:30.250] [info]  [START] Security scan
[DONE] Security scan
** ComfyUI startup time: 2026-04-22 10:12:30.249
** Platform:
[2026-04-22 10:12:30.252] [info]   Windows
** Python version: 3.12.9 (main, Mar 17 2025, 21:06:20) [MSC v.1943 64 bit (AMD64)]
** Python executable: C:\ComfyUI\.venv\Scripts\python.exe
** ComfyUI Path: E:\ComfyUI\resources\ComfyUI
** ComfyUI Base Folder Path: E:\ComfyUI\resources\ComfyUI
** User directory: C:\ComfyUI\user
** ComfyUI-Manager config path: C:\ComfyUI\user\__manager\config.ini
** Log path: C:\ComfyUI\user\comfyui.log

[2026-04-22 10:12:31.164] [info]  [ComfyUI-Manager] Skipped fixing the 'comfyui-frontend-package' dependency because the ComfyUI is outdated.

[2026-04-22 10:12:31.165] [info]  [PRE] ComfyUI-Manager

[2026-04-22 10:12:31.509] [error] C:\ComfyUI\.venv\Lib\site-packages\torch\cuda\__init__.py:63: FutureWarning: The pynvml package is deprecated. Please install nvidia-ml-py instead. If you did not install pynvml directly, please report this to the maintainers of the package that installed pynvml for you.
  import pynvml  # type: ignore[import]

[2026-04-22 10:12:32.860] [info]  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': False, 'unavailable_reason': None, 'capabilities': ['apply_rope', 'apply_rope1', 'dequantize_nvfp4', 'dequantize_per_tensor_fp8', 'quantize_mxfp8', 'quantize_nvfp4', 'quantize_per_tensor_fp8', 'scaled_mm_nvfp4']}
Found comfy_kitchen backend triton: {'available': False, 'disabled': True, 'unavailable_reason': "ImportError: No module named 'triton'", 'capabilities': []}

[2026-04-22 10:12:32.864] [info]  Checkpoint files will always be loaded safely.

[2026-04-22 10:12:32.917] [info]  Total VRAM 12282 MB, total RAM 32557 MB
pytorch version: 2.9.1+cu130

[2026-04-22 10:12:32.919] [info]  Set vram state to: NORMAL_VRAM
Device: cuda:0 NVIDIA GeForce RTX 4070 Ti : cudaMallocAsync

[2026-04-22 10:12:32.933] [info]  Using async weight offloading with 2 streams

[2026-04-22 10:12:32.934] [info]  Enabled pinned memory 13022.0

[2026-04-22 10:12:32.936] [info]  working around nvidia conv3d memory bug.

[2026-04-22 10:12:33.078] [info]  Using pytorch attention

[2026-04-22 10:12:34.411] [error] aimdo: src-win/cuda-detour.c:77:INFO:aimdo_setup_hooks: found driver at 00007FF894E40000, installing 4 hooks
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 4070 Ti (VRAM: 12281 MB)

[2026-04-22 10:12:34.412] [info]  DynamicVRAM support detected and enabled
Python version: 3.12.9 (main, Mar 17 2025, 21:06:20) [MSC v.1943 64 bit (AMD64)]
ComfyUI version: 0.19.4
comfy-aimdo version: 0.2.12
comfy-kitchen version: 0.2.8

[2026-04-22 10:12:34.413] [info]  [Prompt Server] web root: E:\ComfyUI\resources\ComfyUI\web_custom_versions\desktop_app
Asset seeder disabled
[START] ComfyUI-Manager

[2026-04-22 10:12:34.494] [info]  ### Loading: ComfyUI-Manager (V4.1)

[2026-04-22 10:12:34.496] [info]  [ComfyUI-Manager] network_mode: public
### ComfyUI Revision: UNKNOWN (The currently installed ComfyUI is not a Git repository)

[2026-04-22 10:12:34.508] [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:\ComfyUI\.venv\Scripts\python.exe -m pip install matrix-nio


[2026-04-22 10:12:34.509] [info]  [ComfyUI-Manager] Legacy UI is enabled.

[2026-04-22 10:12:34.701] [info]  [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/model-list.json

[2026-04-22 10:12:34.709] [info]  [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/alter-list.json

[2026-04-22 10:12:34.771] [info]  [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/custom-node-list.json

[2026-04-22 10:12:34.811] [info]  [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/extension-node-map.json

[2026-04-22 10:12:34.832] [info]  [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/github-stats.json

[2026-04-22 10:12:35.463] [info]  [Crystools INFO] Crystools version: 1.27.4

[2026-04-22 10:12:35.487] [info]  [Crystools INFO] Platform release: 11
[Crystools INFO] JETSON: Not detected.

[2026-04-22 10:12:35.488] [info]  [Crystools INFO] CPU: 13th Gen Intel(R) Core(TM) i9-13900KF - Arch: AMD64 - OS: Windows 11

[2026-04-22 10:12:35.496] [info]  [Crystools INFO] pynvml (NVIDIA) initialized.

[2026-04-22 10:12:35.497] [info]  [Crystools INFO] GPU/s:

[2026-04-22 10:12:35.504] [info]  [Crystools INFO] 0) NVIDIA GeForce RTX 4070 Ti

[2026-04-22 10:12:35.505] [info]  [Crystools INFO] NVIDIA Driver: 591.74

[2026-04-22 10:12:36.991] [info]  [ComfyUI-Easy-Use] server: v1.3.6 Loaded
[ComfyUI-Easy-Use] web root: C:\ComfyUI\custom_nodes\comfyui-easy-use\web_version/v2 Loaded

[2026-04-22 10:12:37.168] [info]  Found Gemini node at: C:\ComfyUI\custom_nodes\ComfyUI-Gemini_Flash_2.0_Exp\nodes\Gemini_Flash_Node.py

[2026-04-22 10:12:37.170] [info]  Found Audio recorder at: C:\ComfyUI\custom_nodes\ComfyUI-Gemini_Flash_2.0_Exp\nodes\nodes_audio_recorder.py

[2026-04-22 10:12:38.201] [error] C:\ComfyUI\custom_nodes\ComfyUI-Gemini_Flash_2.0_Exp\nodes\Gemini_Flash_Node.py:6: FutureWarning: 

All support for the `google.generativeai` package has ended. It will no longer be receiving 
updates or bug fixes. Please switch to the `google.genai` package as soon as possible.
See README for more details:

https://github.com/google-gemini/deprecated-generative-ai-python/blob/main/README.md

  import google.generativeai as genai

[2026-04-22 10:12:38.253] [info]  Added Gemini node to mappings
Added Audio recorder node to mappings

[2026-04-22 10:12:38.255] [info]  ComfyUI-GGUF: Allowing full torch compile

[2026-04-22 10:12:38.304] [info]  ### Loading: ComfyUI-Impact-Pack (V8.28.2)

[2026-04-22 10:12:38.398] [info]  [Impact Pack] Wildcard total size (0.00 MB) is within cache limit (50.00 MB). Using full cache mode.

[2026-04-22 10:12:38.399] [info]  [Impact Pack] Wildcards loading done.

[2026-04-22 10:12:38.424] [info]  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  Pixaroma v1.2.4  |  
[2026-04-22 10:12:38.426] [info]  7 nodes Loaded
  ComfyUI Tutorials: https://www.youtube.com/@pixaroma
  Some Pixaroma nodes conflict with Nodes 2.0 — consider turning it off from ComfyUI Menu.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

[2026-04-22 10:12:38.638] [info]  
__     ______   ____                      ____              ____ _      _ 
\ \   / /  _ \ / ___| __ _ _ __ ___   ___|  _ \  _____   __/ ___(_)_ __| |
 \ \ / /| |_) | |  _ / _` | '_ ` _ \ / _ \ | | |/ _ \ \ / / |  _| | '__| |
  \ V / |  _ <| |_| | (_| | | | | | |  __/ |_| |  __/\ V /| |_| | | |  | |
   \_/  |_| \_\\____|\__,_|_| |_| |_|\___|____/ \___| \_/  \____|_|_|  |_|
                                                                          
             🎮 VRGameDevGirl custom nodes loaded successfully! 🎞️


[2026-04-22 10:12:38.642] [info]  (pysssss:WD14Tagger) [DEBUG] Available ORT providers: AzureExecutionProvider, CPUExecutionProvider
(pysssss:WD14Tagger) [DEBUG] Using ORT providers: CUDAExecutionProvider, CPUExecutionProvider

[2026-04-22 10:12:39.915] [info]  LOADED 6 FONTS

[2026-04-22 10:12:40.052] [info]  

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[2026-04-22 10:12:40.077] [info]  Eden_Comfy_Pipelines: WARNING: Could not find OPENAI_API_KEY in .env, disabling gpt prompt generation.

[2026-04-22 10:12:40.107] [info]  
    🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱
    🌱 Eden ComfyUI Pack maintained by https://eden.art/  🌱
    
[2026-04-22 10:12:40.108] [info]  🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱
    

[2026-04-22 10:12:40.110] [info]  [PromptModels Studio] 🚀 Loading custom nodes for ComfyUI...

[2026-04-22 10:12:40.111] [info]  [ComfyDeploy] ✅ get_last_frame importado correctamente

[2026-04-22 10:12:40.112] [info]  [GetLastFrame] ✅ Loaded
[TextPromptBlocker] ✅ Loaded

[2026-04-22 10:12:40.113] [info]  [DivisorDePrompts] ✅ Loaded

[2026-04-22 10:12:40.113] [info]  ✓ GETSETNODE_PRO v1.0.0 loaded

[2026-04-22 10:12:40.114] [info]  [GETSETNODE_PRO] ✅ Loaded

[2026-04-22 10:12:40.116] [info]  [GoogleAI] Ruta registrada: /google-ai/health

[2026-04-22 10:12:40.116] [info]  
=================================================================
  ✅ ComfyUI_GoogleAI V2.4.3 — 12 nodos
  🔤 Texto  | 👁️ Vision (Nano Banana)
  🎨 Imagen: Nano Banana Pro/Flash + Imagen 4 (5 pines ref)
  🎬 Veo 3.1 + 🔊 Audio ffmpeg | 🔍 Diagnóstico (5 nodos)
  🛠️  Video: transcodificación H.264 + diagnóstico automático
  💡 Error Explainer → ComfyUI_UniversalErrorExplainer
=================================================================

[ComfyUI-GoogleAI] ✅ Loaded (V2.4.3 — 12 Nodos: Nano Banana/Imagen4/Veo3.1/Diag)

[2026-04-22 10:12:40.118] [info]  [ComfyUI-GrokAI] ✅ Loaded (xAI Integration)

[2026-04-22 10:12:40.119] [info]  ✅ ComfyUI Selectores Pro cargado (4 nodos)

[2026-04-22 10:12:40.120] [info]  [Selectores Pro] ✅ Loaded
[PromptModels Studio] 📦 Total nodes loaded: 34
[PromptModels Studio] ✅ Ready!

[2026-04-22 10:12:40.373] [info]  Using pytorch attention

[2026-04-22 10:12:40.381] [info]  (RES4LYF) Init

[2026-04-22 10:12:40.382] [info]  (RES4LYF) Importing beta samplers.

[2026-04-22 10:12:40.393] [info]  (RES4LYF) Importing legacy samplers.

[2026-04-22 10:12:40.410] [info]  
[rgthree-comfy] Loaded 48 extraordinary nodes. 🎉

[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.


[2026-04-22 10:12:40.417] [info]  ⚠️  SeedVR2 optimizations check: SageAttention ❌ | Flash Attention ❌ | Triton ❌
💡 For best performance: pip install sageattention flash-attn triton
🔧 Conv3d workaround active: PyTorch 2.9.1, cuDNN 91200 (fixing VAE 3x memory bug)

[2026-04-22 10:12:40.494] [info]  📊 Initial CUDA memory: 10.71GB free / 11.99GB total

[2026-04-22 10:12:41.080] [info]  WAS Node Suite: OpenCV Python FFMPEG support is enabled

[2026-04-22 10:12:41.082] [info]  WAS Node Suite Warning: `ffmpeg_bin_path` is not set in `C:\ComfyUI\custom_nodes\was-ns\was_suite_config.json` config file. Will attempt to use system ffmpeg binaries if available.

[2026-04-22 10:12:41.516] [info]  WAS Node Suite: Finished. 
[2026-04-22 10:12:41.517] [info]  Loaded 220 nodes successfully.

	"Your time is limited, don't waste it living someone else's life." - Steve Jobs


[2026-04-22 10:12:41.524] [info]  Blocked by policy: E:\ComfyUI\resources\ComfyUI\custom_nodes\ComfyUI-Manager

[2026-04-22 10:12:41.543] [info]  ------------------------------------------
Comfyroll Studio v1.76 :  175 Nodes Loaded

[2026-04-22 10:12:41.544] [info]  ------------------------------------------
** For changes, please see patch notes at https://github.com/Suzie1/ComfyUI_Comfyroll_CustomNodes/blob/main/Patch_Notes.md
** For help, please see the wiki at https://github.com/Suzie1/ComfyUI_Comfyroll_CustomNodes/wiki
------------------------------------------

[2026-04-22 10:12:41.546] [info]  
Import times for custom nodes:

[2026-04-22 10:12:41.547] [info]     0.0 seconds: E:\ComfyUI\resources\ComfyUI\custom_nodes\websocket_image_save.py
   0.0 seconds: C:\ComfyUI\custom_nodes\Image-Captioning-in-ComfyUI
   0.0 seconds: C:\ComfyUI\custom_nodes\seedvarianceenhancer
   0.0 seconds: C:\ComfyUI\custom_nodes\cg-use-everywhere
   0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-wd14-tagger
   0.0 seconds: C:\ComfyUI\custom_nodes\ComfyUI_Swwan
   0.0 seconds: C:\ComfyUI\custom_nodes\ComfyUI-GGUF
   0.0 seconds: C:\ComfyUI\custom_nodes\ComfyUI-MelBandRoFormer
   0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-custom-scripts
   0.0 seconds: C:\ComfyUI\custom_nodes\comfyui_essentials
   0.0 seconds: C:\ComfyUI\custom_nodes\wwaa-customnodes
   0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-various
   0.0 seconds: C:\ComfyUI\custom_nodes\ComfyMath
   0.0 seconds: C:\ComfyUI\custom_nodes\ComfyUI-Pixaroma
   0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-frame-interpolation
   0.0 seconds: C:\ComfyUI\custom_nodes\promptmodels
   0.0 seconds: C:\ComfyUI\custom_nodes\rgthree-comfy
   0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-vrgamedevgirl
   0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-kjnodes
   0.0 seconds: E:\ComfyUI\resources\ComfyUI\custom_nodes\ComfyUI_Comfyroll_CustomNodes
   0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-ig-nodes
   0.1 seconds: C:\ComfyUI\custom_nodes\eden_comfy_pipelines
   0.1 seconds: C:\ComfyUI\custom_nodes\ComfyUI-Crystools
   0.1 seconds: C:\ComfyUI\custom_nodes\comfyui-videohelpersuite
   0.1 seconds: C:\ComfyUI\custom_nodes\comfyui-impact-pack
   0.1 seconds: C:\ComfyUI\custom_nodes\seedvr2_videoupscaler
   0.1 seconds: C:\ComfyUI\custom_nodes\comfyui-tensorops
   0.2 seconds: C:\ComfyUI\custom_nodes\comfyui-florence2
   0.3 seconds: C:\ComfyUI\custom_nodes\RES4LYF
   1.0 seconds: C:\ComfyUI\custom_nodes\was-ns
   1.1 seconds: C:\ComfyUI\custom_nodes\ComfyUI-Gemini_Flash_2.0_Exp
   1.4 seconds: C:\ComfyUI\custom_nodes\comfyui_fill-nodes
   1.5 seconds: C:\ComfyUI\custom_nodes\comfyui-easy-use


[2026-04-22 10:12:41.552] [info]  Context impl SQLiteImpl.

[2026-04-22 10:12:41.553] [info]  Will assume non-transactional DDL.

[2026-04-22 10:12:41.619] [info]  Starting server

To see the GUI go to: http://127.0.0.1:8000

[2026-04-22 10:12:42.733] [info]  [DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.

[2026-04-22 10:12:42.735] [info]  [DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/components/buttonGroup.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.

[2026-04-22 10:12:42.738] [info]  [DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/clipspace.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.

[2026-04-22 10:12:42.739] [info]  [DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/widgetInputs.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.

[2026-04-22 10:12:43.631] [info]  [DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/components/button.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version.

[2026-04-22 10:14:15.073] [info]  FETCH ComfyRegistry Data [DONE]

[2026-04-22 10:14:15.374] [info]  [ComfyUI-Manager] default cache updated: https://api.comfy.org/nodes

[2026-04-22 10:14:15.427] [info]  FETCH DATA from: C:\ComfyUI\.venv\Lib\site-packages\comfyui_manager\custom-node-list.json
[2026-04-22 10:14:15.445] [info]   [DONE]

[2026-04-22 10:14:15.478] [info]  [ComfyUI-Manager] All startup tasks have been completed.

Browser Logs

No response

Settings JSON

No response

Other

  • The workflow opens correctly in Chrome/Firefox via http://127.0.0.1:8000
  • No errors appear in comfyui.log or main.log at the time of the crash
  • Other workflows (without Pixaroma nodes) open normally in Desktop
  • Pixaroma nodes themselves load correctly on startup (7 nodes loaded)
  • The issue is specific to the Electron wrapper, not the ComfyUI backend

Possible cause

Pixaroma nodes use frontend JavaScript APIs for their UI (image compositor, compare viewer) that may be incompatible with the Electron rendering environment used by ComfyUI Desktop, causing a silent crash when the canvas tries to initialize those node widgets.

┆Issue is synchronized with this Notion page by Unito

Originally created by @radimov on GitHub (Apr 22, 2026). Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1697 ### App Version - **ComfyUI Desktop version:** 0.8.34 - **ComfyUI version:** 0.19.4 - **Frontend version:** 1.42.10 - **OS:** Windows 11 - **GPU:** NVIDIA GeForce RTX 4070 Ti (12GB VRAM) - **Python:** 3.12.9 - **PyTorch:** 2.9.1+cu130 - **Custom nodes involved:** ComfyUI-Pixaroma v1.2.4, rgthree-comfy - **Node 2.0 rendering:** Disabled ### Expected Behavior Workflow loads normally, as it does in the browser. ### Actual Behavior ComfyUI Desktop freezes and closes. No Python-side error is logged in `comfyui.log`. The crash appears to occur in the Electron frontend layer, not in the Python backend. ### Steps to Reproduce 1. Download any workflow containing `PixaromaImageComposition` or `PixaromaCompare` nodes (e.g. from https://www.youtube.com/@pixaroma) 2. Open ComfyUI Desktop 3. Drag the `.json` workflow file onto the canvas 4. App freezes ### Debug Logs ```powershell [2026-04-22 10:12:29.053] [info] Adding extra search path custom_nodes C:\ComfyUI\custom_nodes Adding extra search path download_model_base C:\ComfyUI\models Adding extra search path custom_nodes E:\ComfyUI\resources\ComfyUI\custom_nodes Setting output directory to: C:\ComfyUI\output [2026-04-22 10:12:29.055] [info] Setting input directory to: C:\ComfyUI\input Setting user directory to: C:\ComfyUI\user [2026-04-22 10:12:30.250] [info] [START] Security scan [DONE] Security scan ** ComfyUI startup time: 2026-04-22 10:12:30.249 ** Platform: [2026-04-22 10:12:30.252] [info] Windows ** Python version: 3.12.9 (main, Mar 17 2025, 21:06:20) [MSC v.1943 64 bit (AMD64)] ** Python executable: C:\ComfyUI\.venv\Scripts\python.exe ** ComfyUI Path: E:\ComfyUI\resources\ComfyUI ** ComfyUI Base Folder Path: E:\ComfyUI\resources\ComfyUI ** User directory: C:\ComfyUI\user ** ComfyUI-Manager config path: C:\ComfyUI\user\__manager\config.ini ** Log path: C:\ComfyUI\user\comfyui.log [2026-04-22 10:12:31.164] [info] [ComfyUI-Manager] Skipped fixing the 'comfyui-frontend-package' dependency because the ComfyUI is outdated. [2026-04-22 10:12:31.165] [info] [PRE] ComfyUI-Manager [2026-04-22 10:12:31.509] [error] C:\ComfyUI\.venv\Lib\site-packages\torch\cuda\__init__.py:63: FutureWarning: The pynvml package is deprecated. Please install nvidia-ml-py instead. If you did not install pynvml directly, please report this to the maintainers of the package that installed pynvml for you. import pynvml # type: ignore[import] [2026-04-22 10:12:32.860] [info] 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': False, 'unavailable_reason': None, 'capabilities': ['apply_rope', 'apply_rope1', 'dequantize_nvfp4', 'dequantize_per_tensor_fp8', 'quantize_mxfp8', 'quantize_nvfp4', 'quantize_per_tensor_fp8', 'scaled_mm_nvfp4']} Found comfy_kitchen backend triton: {'available': False, 'disabled': True, 'unavailable_reason': "ImportError: No module named 'triton'", 'capabilities': []} [2026-04-22 10:12:32.864] [info] Checkpoint files will always be loaded safely. [2026-04-22 10:12:32.917] [info] Total VRAM 12282 MB, total RAM 32557 MB pytorch version: 2.9.1+cu130 [2026-04-22 10:12:32.919] [info] Set vram state to: NORMAL_VRAM Device: cuda:0 NVIDIA GeForce RTX 4070 Ti : cudaMallocAsync [2026-04-22 10:12:32.933] [info] Using async weight offloading with 2 streams [2026-04-22 10:12:32.934] [info] Enabled pinned memory 13022.0 [2026-04-22 10:12:32.936] [info] working around nvidia conv3d memory bug. [2026-04-22 10:12:33.078] [info] Using pytorch attention [2026-04-22 10:12:34.411] [error] aimdo: src-win/cuda-detour.c:77:INFO:aimdo_setup_hooks: found driver at 00007FF894E40000, installing 4 hooks 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 4070 Ti (VRAM: 12281 MB) [2026-04-22 10:12:34.412] [info] DynamicVRAM support detected and enabled Python version: 3.12.9 (main, Mar 17 2025, 21:06:20) [MSC v.1943 64 bit (AMD64)] ComfyUI version: 0.19.4 comfy-aimdo version: 0.2.12 comfy-kitchen version: 0.2.8 [2026-04-22 10:12:34.413] [info] [Prompt Server] web root: E:\ComfyUI\resources\ComfyUI\web_custom_versions\desktop_app Asset seeder disabled [START] ComfyUI-Manager [2026-04-22 10:12:34.494] [info] ### Loading: ComfyUI-Manager (V4.1) [2026-04-22 10:12:34.496] [info] [ComfyUI-Manager] network_mode: public ### ComfyUI Revision: UNKNOWN (The currently installed ComfyUI is not a Git repository) [2026-04-22 10:12:34.508] [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:\ComfyUI\.venv\Scripts\python.exe -m pip install matrix-nio [2026-04-22 10:12:34.509] [info] [ComfyUI-Manager] Legacy UI is enabled. [2026-04-22 10:12:34.701] [info] [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/model-list.json [2026-04-22 10:12:34.709] [info] [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/alter-list.json [2026-04-22 10:12:34.771] [info] [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/custom-node-list.json [2026-04-22 10:12:34.811] [info] [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/extension-node-map.json [2026-04-22 10:12:34.832] [info] [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/Comfy-Org/ComfyUI-Manager/main/github-stats.json [2026-04-22 10:12:35.463] [info] [Crystools INFO] Crystools version: 1.27.4 [2026-04-22 10:12:35.487] [info] [Crystools INFO] Platform release: 11 [Crystools INFO] JETSON: Not detected. [2026-04-22 10:12:35.488] [info] [Crystools INFO] CPU: 13th Gen Intel(R) Core(TM) i9-13900KF - Arch: AMD64 - OS: Windows 11 [2026-04-22 10:12:35.496] [info] [Crystools INFO] pynvml (NVIDIA) initialized. [2026-04-22 10:12:35.497] [info] [Crystools INFO] GPU/s: [2026-04-22 10:12:35.504] [info] [Crystools INFO] 0) NVIDIA GeForce RTX 4070 Ti [2026-04-22 10:12:35.505] [info] [Crystools INFO] NVIDIA Driver: 591.74 [2026-04-22 10:12:36.991] [info] [ComfyUI-Easy-Use] server: v1.3.6 Loaded [ComfyUI-Easy-Use] web root: C:\ComfyUI\custom_nodes\comfyui-easy-use\web_version/v2 Loaded [2026-04-22 10:12:37.168] [info] Found Gemini node at: C:\ComfyUI\custom_nodes\ComfyUI-Gemini_Flash_2.0_Exp\nodes\Gemini_Flash_Node.py [2026-04-22 10:12:37.170] [info] Found Audio recorder at: C:\ComfyUI\custom_nodes\ComfyUI-Gemini_Flash_2.0_Exp\nodes\nodes_audio_recorder.py [2026-04-22 10:12:38.201] [error] C:\ComfyUI\custom_nodes\ComfyUI-Gemini_Flash_2.0_Exp\nodes\Gemini_Flash_Node.py:6: FutureWarning: All support for the `google.generativeai` package has ended. It will no longer be receiving updates or bug fixes. Please switch to the `google.genai` package as soon as possible. See README for more details: https://github.com/google-gemini/deprecated-generative-ai-python/blob/main/README.md import google.generativeai as genai [2026-04-22 10:12:38.253] [info] Added Gemini node to mappings Added Audio recorder node to mappings [2026-04-22 10:12:38.255] [info] ComfyUI-GGUF: Allowing full torch compile [2026-04-22 10:12:38.304] [info] ### Loading: ComfyUI-Impact-Pack (V8.28.2) [2026-04-22 10:12:38.398] [info] [Impact Pack] Wildcard total size (0.00 MB) is within cache limit (50.00 MB). Using full cache mode. [2026-04-22 10:12:38.399] [info] [Impact Pack] Wildcards loading done. [2026-04-22 10:12:38.424] [info] ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Pixaroma v1.2.4 | [2026-04-22 10:12:38.426] [info] 7 nodes Loaded ComfyUI Tutorials: https://www.youtube.com/@pixaroma Some Pixaroma nodes conflict with Nodes 2.0 — consider turning it off from ComfyUI Menu. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ [2026-04-22 10:12:38.638] [info] __ ______ ____ ____ ____ _ _ \ \ / / _ \ / ___| __ _ _ __ ___ ___| _ \ _____ __/ ___(_)_ __| | \ \ / /| |_) | | _ / _` | '_ ` _ \ / _ \ | | |/ _ \ \ / / | _| | '__| | \ V / | _ <| |_| | (_| | | | | | | __/ |_| | __/\ V /| |_| | | | | | \_/ |_| \_\\____|\__,_|_| |_| |_|\___|____/ \___| \_/ \____|_|_| |_| 🎮 VRGameDevGirl custom nodes loaded successfully! 🎞️ [2026-04-22 10:12:38.642] [info] (pysssss:WD14Tagger) [DEBUG] Available ORT providers: AzureExecutionProvider, CPUExecutionProvider (pysssss:WD14Tagger) [DEBUG] Using ORT providers: CUDAExecutionProvider, CPUExecutionProvider [2026-04-22 10:12:39.915] [info] LOADED 6 FONTS [2026-04-22 10:12:40.052] [info] ███╗ ███╗ █████╗ ██████╗██╗ ██╗██╗███╗ ██╗███████╗ ████╗ ████║██╔══██╗██╔════╝██║ ██║██║████╗ ██║██╔════╝ ██╔████╔██║███████║██║ ███████║██║██╔██╗ ██║█████╗ ██║╚██╔╝██║██╔══██║██║ ██╔══██║██║██║╚██╗██║██╔══╝ ██║ ╚═╝ ██║██║ ██║╚██████╗██║ ██║██║██║ ╚████║███████╗ ╚═╝ ╚═╝╚═╝ ╚═╝ ╚═════╝╚═╝ ╚═╝╚═╝╚═╝ ╚═══╝╚══════╝ ██████╗ ███████╗██╗ ██╗ ██╗███████╗██╗ ██████╗ ███╗ ██╗███████╗ ██╔══██╗██╔════╝██║ ██║ ██║██╔════╝██║██╔═══██╗████╗ ██║██╔════╝ ██║ ██║█████╗ ██║ ██║ ██║███████╗██║██║ ██║██╔██╗ ██║███████╗ ██║ ██║██╔══╝ ██║ ██║ ██║╚════██║██║██║ ██║██║╚██╗██║╚════██║ ██████╔╝███████╗███████╗╚██████╔╝███████║██║╚██████╔╝██║ ╚████║███████║ ╚═════╝ ╚══════╝╚══════╝ ╚═════╝ ╚══════╝╚═╝ ╚═════╝ ╚═╝ ╚═══╝╚══════╝ [2026-04-22 10:12:40.077] [info] Eden_Comfy_Pipelines: WARNING: Could not find OPENAI_API_KEY in .env, disabling gpt prompt generation. [2026-04-22 10:12:40.107] [info] 🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱 🌱 Eden ComfyUI Pack maintained by https://eden.art/ 🌱 [2026-04-22 10:12:40.108] [info] 🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱🌱 [2026-04-22 10:12:40.110] [info] [PromptModels Studio] 🚀 Loading custom nodes for ComfyUI... [2026-04-22 10:12:40.111] [info] [ComfyDeploy] ✅ get_last_frame importado correctamente [2026-04-22 10:12:40.112] [info] [GetLastFrame] ✅ Loaded [TextPromptBlocker] ✅ Loaded [2026-04-22 10:12:40.113] [info] [DivisorDePrompts] ✅ Loaded [2026-04-22 10:12:40.113] [info] ✓ GETSETNODE_PRO v1.0.0 loaded [2026-04-22 10:12:40.114] [info] [GETSETNODE_PRO] ✅ Loaded [2026-04-22 10:12:40.116] [info] [GoogleAI] Ruta registrada: /google-ai/health [2026-04-22 10:12:40.116] [info] ================================================================= ✅ ComfyUI_GoogleAI V2.4.3 — 12 nodos 🔤 Texto | 👁️ Vision (Nano Banana) 🎨 Imagen: Nano Banana Pro/Flash + Imagen 4 (5 pines ref) 🎬 Veo 3.1 + 🔊 Audio ffmpeg | 🔍 Diagnóstico (5 nodos) 🛠️ Video: transcodificación H.264 + diagnóstico automático 💡 Error Explainer → ComfyUI_UniversalErrorExplainer ================================================================= [ComfyUI-GoogleAI] ✅ Loaded (V2.4.3 — 12 Nodos: Nano Banana/Imagen4/Veo3.1/Diag) [2026-04-22 10:12:40.118] [info] [ComfyUI-GrokAI] ✅ Loaded (xAI Integration) [2026-04-22 10:12:40.119] [info] ✅ ComfyUI Selectores Pro cargado (4 nodos) [2026-04-22 10:12:40.120] [info] [Selectores Pro] ✅ Loaded [PromptModels Studio] 📦 Total nodes loaded: 34 [PromptModels Studio] ✅ Ready! [2026-04-22 10:12:40.373] [info] Using pytorch attention [2026-04-22 10:12:40.381] [info] (RES4LYF) Init [2026-04-22 10:12:40.382] [info] (RES4LYF) Importing beta samplers. [2026-04-22 10:12:40.393] [info] (RES4LYF) Importing legacy samplers. [2026-04-22 10:12:40.410] [info] [rgthree-comfy] Loaded 48 extraordinary nodes. 🎉 [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. [2026-04-22 10:12:40.417] [info] ⚠️ SeedVR2 optimizations check: SageAttention ❌ | Flash Attention ❌ | Triton ❌ 💡 For best performance: pip install sageattention flash-attn triton 🔧 Conv3d workaround active: PyTorch 2.9.1, cuDNN 91200 (fixing VAE 3x memory bug) [2026-04-22 10:12:40.494] [info] 📊 Initial CUDA memory: 10.71GB free / 11.99GB total [2026-04-22 10:12:41.080] [info] WAS Node Suite: OpenCV Python FFMPEG support is enabled [2026-04-22 10:12:41.082] [info] WAS Node Suite Warning: `ffmpeg_bin_path` is not set in `C:\ComfyUI\custom_nodes\was-ns\was_suite_config.json` config file. Will attempt to use system ffmpeg binaries if available. [2026-04-22 10:12:41.516] [info] WAS Node Suite: Finished. [2026-04-22 10:12:41.517] [info] Loaded 220 nodes successfully. "Your time is limited, don't waste it living someone else's life." - Steve Jobs [2026-04-22 10:12:41.524] [info] Blocked by policy: E:\ComfyUI\resources\ComfyUI\custom_nodes\ComfyUI-Manager [2026-04-22 10:12:41.543] [info] ------------------------------------------ Comfyroll Studio v1.76 : 175 Nodes Loaded [2026-04-22 10:12:41.544] [info] ------------------------------------------ ** For changes, please see patch notes at https://github.com/Suzie1/ComfyUI_Comfyroll_CustomNodes/blob/main/Patch_Notes.md ** For help, please see the wiki at https://github.com/Suzie1/ComfyUI_Comfyroll_CustomNodes/wiki ------------------------------------------ [2026-04-22 10:12:41.546] [info] Import times for custom nodes: [2026-04-22 10:12:41.547] [info] 0.0 seconds: E:\ComfyUI\resources\ComfyUI\custom_nodes\websocket_image_save.py 0.0 seconds: C:\ComfyUI\custom_nodes\Image-Captioning-in-ComfyUI 0.0 seconds: C:\ComfyUI\custom_nodes\seedvarianceenhancer 0.0 seconds: C:\ComfyUI\custom_nodes\cg-use-everywhere 0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-wd14-tagger 0.0 seconds: C:\ComfyUI\custom_nodes\ComfyUI_Swwan 0.0 seconds: C:\ComfyUI\custom_nodes\ComfyUI-GGUF 0.0 seconds: C:\ComfyUI\custom_nodes\ComfyUI-MelBandRoFormer 0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-custom-scripts 0.0 seconds: C:\ComfyUI\custom_nodes\comfyui_essentials 0.0 seconds: C:\ComfyUI\custom_nodes\wwaa-customnodes 0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-various 0.0 seconds: C:\ComfyUI\custom_nodes\ComfyMath 0.0 seconds: C:\ComfyUI\custom_nodes\ComfyUI-Pixaroma 0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-frame-interpolation 0.0 seconds: C:\ComfyUI\custom_nodes\promptmodels 0.0 seconds: C:\ComfyUI\custom_nodes\rgthree-comfy 0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-vrgamedevgirl 0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-kjnodes 0.0 seconds: E:\ComfyUI\resources\ComfyUI\custom_nodes\ComfyUI_Comfyroll_CustomNodes 0.0 seconds: C:\ComfyUI\custom_nodes\comfyui-ig-nodes 0.1 seconds: C:\ComfyUI\custom_nodes\eden_comfy_pipelines 0.1 seconds: C:\ComfyUI\custom_nodes\ComfyUI-Crystools 0.1 seconds: C:\ComfyUI\custom_nodes\comfyui-videohelpersuite 0.1 seconds: C:\ComfyUI\custom_nodes\comfyui-impact-pack 0.1 seconds: C:\ComfyUI\custom_nodes\seedvr2_videoupscaler 0.1 seconds: C:\ComfyUI\custom_nodes\comfyui-tensorops 0.2 seconds: C:\ComfyUI\custom_nodes\comfyui-florence2 0.3 seconds: C:\ComfyUI\custom_nodes\RES4LYF 1.0 seconds: C:\ComfyUI\custom_nodes\was-ns 1.1 seconds: C:\ComfyUI\custom_nodes\ComfyUI-Gemini_Flash_2.0_Exp 1.4 seconds: C:\ComfyUI\custom_nodes\comfyui_fill-nodes 1.5 seconds: C:\ComfyUI\custom_nodes\comfyui-easy-use [2026-04-22 10:12:41.552] [info] Context impl SQLiteImpl. [2026-04-22 10:12:41.553] [info] Will assume non-transactional DDL. [2026-04-22 10:12:41.619] [info] Starting server To see the GUI go to: http://127.0.0.1:8000 [2026-04-22 10:12:42.733] [info] [DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version. [2026-04-22 10:12:42.735] [info] [DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/components/buttonGroup.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version. [2026-04-22 10:12:42.738] [info] [DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/clipspace.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version. [2026-04-22 10:12:42.739] [info] [DEPRECATION WARNING] Detected import of deprecated legacy API: /extensions/core/widgetInputs.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version. [2026-04-22 10:12:43.631] [info] [DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui/components/button.js. This is likely caused by a custom node extension using outdated APIs. Please update your extensions or contact the extension author for an updated version. [2026-04-22 10:14:15.073] [info] FETCH ComfyRegistry Data [DONE] [2026-04-22 10:14:15.374] [info] [ComfyUI-Manager] default cache updated: https://api.comfy.org/nodes [2026-04-22 10:14:15.427] [info] FETCH DATA from: C:\ComfyUI\.venv\Lib\site-packages\comfyui_manager\custom-node-list.json [2026-04-22 10:14:15.445] [info] [DONE] [2026-04-22 10:14:15.478] [info] [ComfyUI-Manager] All startup tasks have been completed. ``` ### Browser Logs _No response_ ### Settings JSON _No response_ ### Other - The workflow opens correctly in Chrome/Firefox via `http://127.0.0.1:8000` - No errors appear in `comfyui.log` or `main.log` at the time of the crash - Other workflows (without Pixaroma nodes) open normally in Desktop - Pixaroma nodes themselves load correctly on startup (`7 nodes loaded`) - The issue is specific to the Electron wrapper, not the ComfyUI backend ### Possible cause Pixaroma nodes use frontend JavaScript APIs for their UI (image compositor, compare viewer) that may be incompatible with the Electron rendering environment used by ComfyUI Desktop, causing a silent crash when the canvas tries to initialize those node widgets. ┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-1697-Bug-ComfyUI-Desktop-crashes-when-dragging-Pixaroma-workflows-onto-canvas-34a6d73d3650814e8cb4c1bb6b0fc3ff) by [Unito](https://www.unito.io)
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