[GH-ISSUE #1296] USO output error #362

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opened 2026-10-31 22:12:03 +00:00 by bsakaguchi · 1 comment

bsakaguchi commented

2026-10-31 22:12:03 +00:00

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Originally created by @manassm on GitHub (Sep 5, 2025).
Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1296

I tried using USO workflow on comfy desktop, but it only outputs black image. I'm guessing I would need to wait for another update, but please correct me if I'm wrong.

┆Issue is synchronized with this Notion page by Unito

Originally created by @manassm on GitHub (Sep 5, 2025). Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1296 I tried using USO workflow on comfy desktop, but it only outputs black image. I'm guessing I would need to wait for another update, but please correct me if I'm wrong. ┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-1296-USO-output-error-2656d73d365081b589f8c45ebb256c33) by [Unito](https://www.unito.io)

bsakaguchi

2026-10-31 22:12:03 +00:00

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bsakaguchi commented

2026-10-31 22:12:04 +00:00

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@dosubot[bot] commented on GitHub (Sep 5, 2025):

This is a known issue—there’s an open report confirming that the USO workflow currently outputs only black images in ComfyUI Desktop, and no official fix or workaround has been posted yet source.

Black image outputs in ComfyUI are often linked to version mismatches, missing/corrupt models, or backend dependency issues (like PyTorch builds), not the desktop app itself. The official docs recommend making sure both ComfyUI and its dependencies are fully updated, ideally using the provided update script, since the desktop version can lag behind the nightly builds and may not support the latest workflows source.

Some users with similar black image issues (not specific to USO) have had luck by reloading or rewiring checkpoint loader nodes, or by generating images multiple times, but these are not guaranteed fixes source.

If you’re already on the latest version and dependencies, you may need to wait for an update that addresses this specific workflow compatibility.

To reply, just mention @dosu.

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@dosubot[bot] commented on GitHub (Sep 5, 2025):  This is a known issue—there’s an open report confirming that the USO workflow currently outputs only black images in ComfyUI Desktop, and no official fix or workaround has been posted yet [source](https://github.com/Comfy-Org/desktop/issues/1296). Black image outputs in ComfyUI are often linked to version mismatches, missing/corrupt models, or backend dependency issues (like PyTorch builds), not the desktop app itself. The official docs recommend making sure both ComfyUI and its dependencies are fully updated, ideally using the provided update script, since the desktop version can lag behind the nightly builds and may not support the latest workflows [source](https://docs.comfy.org/installation/update_comfyui). Some users with similar black image issues (not specific to USO) have had luck by reloading or rewiring checkpoint loader nodes, or by generating images multiple times, but these are not guaranteed fixes [source](https://github.com/Comfy-Org/desktop/issues/938). If you’re already on the latest version and dependencies, you may need to wait for an update that addresses this specific workflow compatibility.  *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. Try [Dosu](https://dosu.dev?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=knowledge-infrastructure-tagline&utm_term=Comfy-Org%2Fdesktop). 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bsakaguchi referenced this issue

2026-10-31 22:17:10 +00:00

[PR #362] [MERGED] Settings store #818

bsakaguchi referenced this issue

2026-10-31 22:17:12 +00:00

[PR #363] [MERGED] Installer window #820

bsakaguchi referenced this issue

2026-10-31 22:17:36 +00:00

[PR #440] [MERGED] Revert "Settings store" #868

bsakaguchi referenced this issue

2026-10-31 22:17:39 +00:00

[PR #446] [MERGED] Reland #362 - improved startup error handling #873