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Ksampler preview dont show anymore after update comfyui to the last version!?

Open merecesarchviz opened this issue 1 week ago • 41 comments

Custom Node Testing

Expected Behavior

If i install the previous version all work´s again!! so something in the update break it!

Actual Behavior

I update my comfyui today with the lastest version now the ksampler previews dont show anymore!!!??

Image

Steps to Reproduce

I update my comfyui today with the lastest version now the ksampler previews dont show anymore!!!??

Image

Debug Logs

I update my comfyui today with the lastest version now the ksampler previews dont show anymore!!!??

<img width="2257" height="1107" alt="Image" src="https://github.com/user-attachments/assets/c46e67f7-adaa-4cc9-a320-3ccb0e1106db" />

Other

No response

merecesarchviz avatar Dec 18 '25 10:12 merecesarchviz

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mdkdy avatar Dec 18 '25 12:12 mdkdy

even

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even with that activate to Latent2RGB dont work!!

I have in the both locations in manager and there in settings and no previews!! if i install the previous comfyui all turn´s to work again so is this built have some weird bug

merecesarchviz avatar Dec 18 '25 12:12 merecesarchviz

Backup the configs ComfyUI\user\default\comfy.settings.json and ComfyUI\user\__manager\config.ini, relaunch Comfy, then manually set all the settings back to what you had, making sure to set the Comfy>Settings>Live preview method to auto or what ever you want. It fixed the problem when I had it.

RandomGitUser321 avatar Dec 18 '25 12:12 RandomGitUser321

even

Image

even with that activate to Latent2RGB dont work!!

I have in the both locations in manager and there in settings and no previews!! if i install the previous comfyui all turn´s to work again so is this built have some weird bug

Have the same problem after update...

zthrx avatar Dec 18 '25 13:12 zthrx

Backup the configs ComfyUI\user\default\comfy.settings.json and ComfyUI\user\__manager\config.ini, relaunch Comfy, then manually set all the settings back to what you had, making sure to set the Comfy>Settings>Live preview method to auto or what ever you want. It fixed the problem when I had it.

What do you mean, deleting those files?

zthrx avatar Dec 18 '25 13:12 zthrx

I have to add, that each time I reload comfy "preview setting" goes back to "none"

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Having it switched "on" in settings, doesn't do anything

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zthrx avatar Dec 18 '25 13:12 zthrx

Go to Settings and change live preview method

nova452 avatar Dec 18 '25 13:12 nova452

Go to Settings and change live preview method

It doesn't work, thats the problem.

zthrx avatar Dec 18 '25 13:12 zthrx

Image in settings vhs i had to turn on "Display animated previews when sampling" now it seems to work again no clue why this was turned of :/ lately the updates brings more trouble then good...

janoschsimon avatar Dec 18 '25 13:12 janoschsimon

Image in settings vhs i had to turn on "Display animated previews when sampling" now it seems to work again no clue why this was turned of :/ lately the updates brings more trouble then good...

Didn't work for me :/

zthrx avatar Dec 18 '25 13:12 zthrx

did you git pull ComfyUI-VideoHelperSuite i updated everything and now it sees to work hahaha

janoschsimon avatar Dec 18 '25 14:12 janoschsimon

did you git pull ComfyUI-VideoHelperSuite i updated everything and now it sees to work hahaha

updated to 1.7.9 still not working :/

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zthrx avatar Dec 18 '25 14:12 zthrx

here the same still nothing working! with all the 3 options activated no preview!!

Image Image Image

so bug for sure of this realease!

merecesarchviz avatar Dec 18 '25 14:12 merecesarchviz

here the same still nothing working! with all the 3 options activated no preview!! Image Image Image

so bug for sure of this realease!

Confirming, btw how on earth 2-3 options control the same setting- what could go wrong...

zthrx avatar Dec 18 '25 14:12 zthrx

I also update ComfyUI-VideoHelperSuite but still not working!!

merecesarchviz avatar Dec 18 '25 15:12 merecesarchviz

It doesnt work even without ComfyUI-VideoHelperSuite

snowicki89 avatar Dec 18 '25 15:12 snowicki89

here the same still nothing working! with all the 3 options activated no preview!!

Image Image Image so bug for sure of this realease!

one thing you need need to change in the preview sektion you have input only selected you need to switch it to aways :) cheers janosch

janoschsimon avatar Dec 18 '25 15:12 janoschsimon

here the same still nothing working! with all the 3 options activated no preview!! Image Image Image so bug for sure of this realease!

one thing you need need to change in the preview sektion you have input only selected you need to switch it to aways :) cheers janosch

Thanks for the tip, but still not working :/

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zthrx avatar Dec 18 '25 15:12 zthrx

Same issue. I'd initially set it to latent to rgb inside comfyui manager and it had always just worked. Latest update broke it. Noticed the setting had been turned to NONE, so I switched it back to latent2rgb, but still nada.

AlexTheSandGrinder avatar Dec 18 '25 17:12 AlexTheSandGrinder

you can try to print in latent_preview.py what method is set (in def get_previewer(device, latent_format))

mdkdy avatar Dec 18 '25 17:12 mdkdy

Mine also doesn't show the preview image after the update.

w2253543w avatar Dec 18 '25 17:12 w2253543w

Launching with 'python main.py --preview-method latent2rgb' fixed it for me. At least I think that's what made it work. :D

Rumaben avatar Dec 18 '25 17:12 Rumaben

yeap adding it also solve it to me

merecesarchviz avatar Dec 18 '25 18:12 merecesarchviz

Launching with 'python main.py --preview-method latent2rgb' fixed it for me. At least I think that's what made it work. :D

yup we have to find solutions for the things that was working perfectly , while they just fixing the thing which was working nicely

markha1 avatar Dec 18 '25 19:12 markha1

why is so much stuff breaking, this is getting real tiresome. never updating again

rktvr avatar Dec 18 '25 21:12 rktvr

With every update, something breaks because they don’t even bother testing it before release

Martaftw-cmd avatar Dec 18 '25 23:12 Martaftw-cmd

If you are on the portable version adding

--preview-method auto

to the run_nvidia_gpu.bat also works

Lumabrik avatar Dec 18 '25 23:12 Lumabrik

If you are on the portable version adding

--preview-method auto

to the run_nvidia_gpu.bat also works

This works

Madaswamy14 avatar Dec 19 '25 05:12 Madaswamy14

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The runtime live preview configuration has been migrated from ComfyUI-Manager to a native feature of ComfyUI. I apologize for the lack of sufficient guidance during this transition.

After updating to the latest ComfyUI-Manager (v3.39), if your ComfyUI version natively provides the live preview feature, the preview method option in ComfyUI-Manager will be automatically disabled, and a tooltip will be shown to guide you.

ltdrdata avatar Dec 19 '25 14:12 ltdrdata

我auto可用

yangnt avatar Dec 20 '25 01:12 yangnt