SamplerCustomAdvanced error

[islamoid]

mat1 and mat2 shapes cannot be multiplied (1x1 and 768x3072)

[warura]

I am having the same problem, tried different workflows for NF4 AIO, and all give the same error.

[trsh3r]

same here. I'm reusing a workflow by sliding the generated image and trying to regenerate, without any change to workflow or parameters.
In case it's relevant, I ran an update of both ComfyUI and gui today.

[mgiatti]

I am having the same problem since I update ComfyUI , not sure if text enconder or something else handler on ComfyUI has changed. Does anyone found a solution?

[jordanwmcdonald]

Same issue here.

[clemarjonlaguardia]

I switched to flux1-dev-fp8 models. Seems nf4 quantized models is not compatible with latest comfy version.

[mazz3d]

I switched to flux1-dev-fp8 models. Seems nf4 quantized models is not compatible with latest comfy version.

why? i have been trying to fix this issue for up to 3 days! thats really frustrating and wasting of time!

[Jellybit]

Does anyone have any idea what happened? It used to work in Comfy. It broke 5 of my models.

[SnowDog99]

I get the same error using the same workflow you posted in the image above. Just tried it in ComfyUI Desktop and got the same error. I wish they would fix this!

[mgiatti]

Not sure if this will be fixed because it seems that Comfyui is not compatible anymore. What I did was migrate to WebUI Forge instead of ComfyUI to keep using NF4

BTW I did not test yet but some people claim that this new ComfyUI node seems to be faster for low vram : https://github.com/mit-han-lab/ComfyUI-nunchaku