[GH-ISSUE #1610] [Bug]: API Nano Banana problem #480

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opened 2026-10-31 22:13:29 +00:00 by bsakaguchi · 2 comments

bsakaguchi commented 2026-10-31 22:13:29 +00:00

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Originally created by @fdupas67 on GitHub (Feb 18, 2026).
Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1610

App Version

I have an issue with creating images with Nano Banana Pro withint ComfyUI Desktop. Since about 2-3 days, I try to create image from text or from an other image to improve it and it takes my credit but it doesn't create any image. It is a big problem because the cost of each image with Nano Banana withing ComfyUI is very high and there is no result. It means that it is a pure loss of money without any results.

Expected Behavior

I've done many images before and it worked. It is ok to pay for images when it works but when it doesn't work and it also take the credits, it is insane. I have done at least 6 images in supposed 4k with no result but taking about 50 credits for each image. It means that I pay for nothing, so it is a big problem.

Actual Behavior

Here you can see the before and after I run the process to creatre the image and you will see that ComfyUI took me 51 credits without creating nothing, so it is like to steel someone.

Steps to Reproduce

Here you can see a version who worked and a version who didn't work. I tried to attached a 4k version but the size seems to be to big and it gave an error mistake.

Debug Logs

Browser Logs

user.css:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

user.css:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/userdata?dir=subgraphs&recurse=true&split=false&full_info=true:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/userdata/comfy.templates.json:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

extensionStore.ts:68 Extension KJNodes.browserstatus is disabled.
registerExtension @ extensionStore.ts:68
buttonGroup.js:2 [ComfyUI Deprecated] Importing from "scripts/ui/components/buttonGroup.js" is deprecated and will be removed in v1.34.
(anonymous) @ buttonGroup.js:2
button.js:2 [ComfyUI Deprecated] Importing from "scripts/ui/components/button.js" is deprecated and will be removed in v1.34.
(anonymous) @ button.js:2
widgetInputs.js:2 [ComfyUI Notice] "extensions/core/widgetInputs.js" is an internal module, not part of the public API. Future updates may break this import.
(anonymous) @ widgetInputs.js:2
utils.js:2 [ComfyUI Notice] "scripts/utils.js" is an internal module, not part of the public API. Future updates may break this import.
(anonymous) @ utils.js:2
pnginfo.js:2 [ComfyUI Notice] "scripts/pnginfo.js" is an internal module, not part of the public API. Future updates may break this import.
(anonymous) @ pnginfo.js:2
widgets.js:2 [ComfyUI Notice] "scripts/widgets.js" is an internal module, not part of the public API. Future updates may break this import.
(anonymous) @ widgets.js:2
maskeditor.ts:155 [MaskEditor] ComfyApp.open_maskeditor is deprecated. Plugins should migrate to using the command system or direct node context menu integration.
init @ maskeditor.ts:155
contextMenuCompat.ts:88 [DEPRECATED] Monkey-patching getCanvasMenuOptions is deprecated. (Extension: "cg.customnodes.use_everywhere")Please use the new context menu API instead.See: https://docs.comfy.org/custom-nodes/js/context-menu-migration
set @ contextMenuCompat.ts:88
contextMenuCompat.ts:88 [DEPRECATED] Monkey-patching getCanvasMenuOptions is deprecated. (Extension: "rgthree.QueueNode")Please use the new context menu API instead.See: https://docs.comfy.org/custom-nodes/js/context-menu-migration
set @ contextMenuCompat.ts:88
:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.05348282660657322:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.31508525783962016:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.05348282660657322:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.31508525783962016:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.6305341436512699:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.9038193447134253:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.6305341436512699:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.9038193447134253:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

127.0.0.1/:1 Autofocus processing was blocked because a document already has a focused element.
:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.3836175579015051:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.3498630863691803:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.045485175990078286:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.638067641542569:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.3836175579015051:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.3498630863691803:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.045485175990078286:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

:8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.638067641542569:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

useMinimapGraph.ts:105 Attempted to cleanup event listeners for graph that was never set up
cleanupEventListeners @ useMinimapGraph.ts:105
user.css:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

user.css:1

   Failed to load resource: the server responded with a status of 404 (Not Found)

Settings JSON

comfy.settings.json

Other

I wish it would work again soon. I can use OpenArt AI for the moment because I have also a subscription there.

┆Issue is synchronized with this Notion page by Unito

Originally created by @fdupas67 on GitHub (Feb 18, 2026). Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1610 ### App Version I have an issue with creating images with Nano Banana Pro withint ComfyUI Desktop. Since about 2-3 days, I try to create image from text or from an other image to improve it and it takes my credit but it doesn't create any image. It is a big problem because the cost of each image with Nano Banana withing ComfyUI is very high and there is no result. It means that it is a pure loss of money without any results. <img width="1028" height="1031" alt="Image" src="https://github.com/user-attachments/assets/f1cf18bf-b20a-425e-a93a-ba5929c6dc3f" /> <img width="2024" height="1064" alt="Image" src="https://github.com/user-attachments/assets/c54b4213-0895-4863-bf65-c12de1f56588" /> ### Expected Behavior I've done many images before and it worked. It is ok to pay for images when it works but when it doesn't work and it also take the credits, it is insane. I have done at least 6 images in supposed 4k with no result but taking about 50 credits for each image. It means that I pay for nothing, so it is a big problem. ### Actual Behavior Here you can see the before and after I run the process to creatre the image and you will see that ComfyUI took me 51 credits without creating nothing, so it is like to steel someone. <img width="2375" height="1268" alt="Image" src="https://github.com/user-attachments/assets/9e4765b6-c470-44e7-b7ac-30c587590ebe" /> <img width="2394" height="1290" alt="Image" src="https://github.com/user-attachments/assets/32b0683e-a5bb-47ec-b792-afb435380443" /> ### Steps to Reproduce Here you can see a version who worked and a version who didn't work. I tried to attached a 4k version but the size seems to be to big and it gave an error mistake. <img width="1536" height="2752" alt="Image" src="https://github.com/user-attachments/assets/37113b4b-cb57-493e-a0a9-a273951234fb" /> <img width="1024" height="1024" alt="Image" src="https://github.com/user-attachments/assets/8edf45be-a140-4237-9e22-7036388ab5ef" /> ### Debug Logs ```powershell ``` ### Browser Logs user.css:1 Failed to load resource: the server responded with a status of 404 (Not Found) user.css:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/userdata?dir=subgraphs&recurse=true&split=false&full_info=true:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/userdata/comfy.templates.json:1 Failed to load resource: the server responded with a status of 404 (Not Found) extensionStore.ts:68 Extension KJNodes.browserstatus is disabled. registerExtension @ extensionStore.ts:68 buttonGroup.js:2 [ComfyUI Deprecated] Importing from "scripts/ui/components/buttonGroup.js" is deprecated and will be removed in v1.34. (anonymous) @ buttonGroup.js:2 button.js:2 [ComfyUI Deprecated] Importing from "scripts/ui/components/button.js" is deprecated and will be removed in v1.34. (anonymous) @ button.js:2 widgetInputs.js:2 [ComfyUI Notice] "extensions/core/widgetInputs.js" is an internal module, not part of the public API. Future updates may break this import. (anonymous) @ widgetInputs.js:2 utils.js:2 [ComfyUI Notice] "scripts/utils.js" is an internal module, not part of the public API. Future updates may break this import. (anonymous) @ utils.js:2 pnginfo.js:2 [ComfyUI Notice] "scripts/pnginfo.js" is an internal module, not part of the public API. Future updates may break this import. (anonymous) @ pnginfo.js:2 widgets.js:2 [ComfyUI Notice] "scripts/widgets.js" is an internal module, not part of the public API. Future updates may break this import. (anonymous) @ widgets.js:2 maskeditor.ts:155 [MaskEditor] ComfyApp.open_maskeditor is deprecated. Plugins should migrate to using the command system or direct node context menu integration. init @ maskeditor.ts:155 contextMenuCompat.ts:88 [DEPRECATED] Monkey-patching getCanvasMenuOptions is deprecated. (Extension: "cg.customnodes.use_everywhere")Please use the new context menu API instead.See: https://docs.comfy.org/custom-nodes/js/context-menu-migration set @ contextMenuCompat.ts:88 contextMenuCompat.ts:88 [DEPRECATED] Monkey-patching getCanvasMenuOptions is deprecated. (Extension: "rgthree.QueueNode")Please use the new context menu API instead.See: https://docs.comfy.org/custom-nodes/js/context-menu-migration set @ contextMenuCompat.ts:88 :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.05348282660657322:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.31508525783962016:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.05348282660657322:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.31508525783962016:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.6305341436512699:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.9038193447134253:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.6305341436512699:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.9038193447134253:1 Failed to load resource: the server responded with a status of 404 (Not Found) 127.0.0.1/:1 Autofocus processing was blocked because a document already has a focused element. :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.3836175579015051:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.3498630863691803:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.045485175990078286:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.638067641542569:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.3836175579015051:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.3498630863691803:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_2.png&subfolder=&rand=0.045485175990078286:1 Failed to load resource: the server responded with a status of 404 (Not Found) :8002/api/view?type=input&filename=api_nano_banana_pro_input_image_1.png&subfolder=&rand=0.638067641542569:1 Failed to load resource: the server responded with a status of 404 (Not Found) useMinimapGraph.ts:105 Attempted to cleanup event listeners for graph that was never set up cleanupEventListeners @ useMinimapGraph.ts:105 user.css:1 Failed to load resource: the server responded with a status of 404 (Not Found) user.css:1 Failed to load resource: the server responded with a status of 404 (Not Found) ### Settings JSON [comfy.settings.json](https://github.com/user-attachments/files/25396283/comfy.settings.json) ### Other I wish it would work again soon. I can use OpenArt AI for the moment because I have also a subscription there. ┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-1610-Bug-API-Nano-Banana-problem-30b6d73d365081529fdcd3e69cf1c4be) by [Unito](https://www.unito.io)

bsakaguchi 2026-10-31 22:13:29 +00:00

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bsakaguchi commented 2026-10-31 22:13:29 +00:00

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@Maik-96 commented on GitHub (Feb 19, 2026):

Having the same issue since yesterday.

<!-- gh-comment-id:3925550179 --> @Maik-96 commented on GitHub (Feb 19, 2026): Having the same issue since yesterday.

bsakaguchi commented 2026-10-31 22:13:29 +00:00

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@dosubot[bot] commented on GitHub (May 21, 2026):

Hi, @fdupas67. I'm Dosu, and I'm helping the desktop team manage their backlog and am marking this issue as stale.

Issue Summary

• You reported that Nano Banana Pro image generation in ComfyUI Desktop is consuming credits but returning no output.
• The problem affects both text-to-image and image-to-image workflows.
• You noted this has been happening repeatedly over the past 2–3 days, resulting in credit loss without generated images.
• Another user, Maik-96, commented that they are seeing the same issue, which suggests it may be affecting multiple users.

Next Steps

• Please let us know if this is still happening on the latest version of the desktop app.
• If it is still relevant, you can keep the discussion open by commenting here; otherwise, this issue will be automatically closed in 7 days.

Thanks for your understanding and contribution.

<!-- gh-comment-id:4510141201 --> @dosubot[bot] commented on GitHub (May 21, 2026): Hi, @fdupas67. I'm [Dosu](https://dosu.dev), and I'm helping the desktop team manage their backlog and am marking this issue as stale. **Issue Summary** - You reported that Nano Banana Pro image generation in ComfyUI Desktop is consuming credits but returning no output. - The problem affects both text-to-image and image-to-image workflows. - You noted this has been happening repeatedly over the past 2–3 days, resulting in credit loss without generated images. - Another user, Maik-96, commented that they are seeing the same issue, which suggests it may be affecting multiple users. **Next Steps** - Please let us know if this is still happening on the latest version of the desktop app. - If it is still relevant, you can keep the discussion open by commenting here; otherwise, this issue will be automatically closed in 7 days. Thanks for your understanding and contribution.

bsakaguchi referenced this issue 2026-10-31 22:17:53 +00:00

[PR #480] [MERGED] Update uv to 0.5.8 #901

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Comfy-Org/desktop#480

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