[GH-ISSUE #1565] Potential Bug - Manager breaks real-time generation previews in all nodes and Matrix inference #665

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opened 2026-10-27 21:20:39 +00:00 by bsakaguchi · 1 comment

bsakaguchi commented

2026-10-27 21:20:39 +00:00

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Originally created by @HowellBP on GitHub (Feb 18, 2025).
Original GitHub issue: https://github.com/Comfy-Org/ComfyUI-Manager/issues/1565

Please forgive me if I'm using the wrong terms, I'm just going off observation.

Some change to Manager in the past month caused real-time image generation previews across all sampler nodes to break, including the preview in the Matrix app's inference page. I don't know the exact date or version because I've tried rolling both ComfyUI and Manager back several versions and I can't seem to find one where the sampler preview still works. I do know it wasn't always broken, because only a few weeks ago I was running ComfyUI with the manager, and real-time generation previews were still working properly.

I was able to confirm it was Manager breaking the previews by removing it completely; all sampler nodes and the Matrix inference preview started showing the real-time image generation again without changing anything else about ComfyUI or the Matrix app. Logs from Matrix don't show anything other than the generation happening and the iterations per second, but there are never any errors in them or the ComfyUI console.

If there's any more information I can provide to help troubleshoot this, please let me know.

Originally created by @HowellBP on GitHub (Feb 18, 2025). Original GitHub issue: https://github.com/Comfy-Org/ComfyUI-Manager/issues/1565 Please forgive me if I'm using the wrong terms, I'm just going off observation. Some change to Manager in the past month caused real-time image generation previews across all sampler nodes to break, including the preview in the Matrix app's inference page. I don't know the exact date or version because I've tried rolling both ComfyUI and Manager back several versions and I can't seem to find one where the sampler preview still works. I do know it wasn't always broken, because only a few weeks ago I was running ComfyUI with the manager, and real-time generation previews were still working properly. I was able to confirm it was Manager breaking the previews by removing it completely; all sampler nodes and the Matrix inference preview started showing the real-time image generation again without changing anything else about ComfyUI or the Matrix app. Logs from Matrix don't show anything other than the generation happening and the iterations per second, but there are never any errors in them or the ComfyUI console. If there's any more information I can provide to help troubleshoot this, please let me know.

bsakaguchi closed this issue

2026-10-27 21:20:39 +00:00

bsakaguchi commented

2026-10-27 21:20:39 +00:00

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@HowellBP commented on GitHub (Feb 18, 2025):

Resolved with https://github.com/comfyanonymous/ComfyUI/issues/6854#issuecomment-2665324331

It wasn't obvious to me that the preview method was set to "none" by default on a new Manager install. Setting it to "latent2rgb" resolved the issue.

@HowellBP commented on GitHub (Feb 18, 2025): Resolved with https://github.com/comfyanonymous/ComfyUI/issues/6854#issuecomment-2665324331 It wasn't obvious to me that the preview method was set to "none" by default on a new Manager install. Setting it to "latent2rgb" resolved the issue.

bsakaguchi referenced this issue

2026-10-27 21:31:31 +00:00

[PR #665] [MERGED] add gonzalu/ComfyUI_YFG_Comical node to list #1453