RuntimeError: mat1 and mat2 shapes cannot be multiplied (1x3072 and 1320x18432) Time taken: 14.9 sec.

[jokero3answer]

[Xardous]

This usually happens during a shape mismatch(duh), in this case it most likely has to do with the lora being incompatible with the flux model. Or if you're using an AMD gpu, then there is a similar issue posted here: https://github.com/lllyasviel/stable-diffusion-webui-forge/issues/1269

[mirh]

#1270 This happens because Q-K models are still unsupported