Unreal 5 plugin image inputs only work with jpg. Any image format can be input, but only jpeg reacts

I've posted this in another thread but it seems to have gotten buried and I think its an important issue so I'll post the issue here as well.

I've been having an issue with image inputs with SBSARs in UE5. It seems like you can give it any image type you want as an input, but only jpegs seem to actually be read. I'm trying to build a system that allows artists to add height maps as image inputs, but that requires high bit depth gray fromats like PNGs in order to get the needed detail.

There is no error message or visual corruption when using a non-jpeg format, simply nothing happens. For UE5 it seems like you got rid of the SubstancePNG, SubstanceJPG & SubstanceTGA import formats so I assumed any standard image format would work, is that not the case?

I've attached some images showing the issue, any help would be appriciated