I can't load workflows through the Jason file.

[razvanab]

I can't load workflows through the Jason file, and the only way to load any workflow is only through the ComfyUI-Manager load button. There is no error in the logs either.

[ltdrdata]

Press F12 (if chrome) and see the console log.

[razvanab]

2exifr.js:2 Uncaught (in promise) Error: Unknown file format

default.json

[razvanab]

Any ideas on how to fix this?

[ltdrdata]

2exifr.js:2 Uncaught (in promise) Error: Unknown file format

default.json

It seems that you have installed some custom nodes which is causing that issue.
Disable all custom nodes and try again.

Or search exifr.js file in ComfyUI/custom_nodes/ then you can find the problem extension.

[razvanab]

You are right. I searched for that file, and I found it in this extension:
"ComfyUI_ExtendedImageFormats"
So I uninstalled it, and now everything is working.

[ltdrdata]

This issue is patched.
kaanyalova/ComfyUI_ExtendedImageFormats#1