Image Compositing from Extracted RGB in 1.0.5 Broken?

I’ve just tried using 1.0.5 to combine seperate R,G,B images extracted from a OSC file but get a error saying no header information in .fits files (can’t remember exact wording) when trying to load in the seperate RGB files using the Image Compositing tool.

Reverted back to 1.0.4 and it works fine.

I tried to compose 3 images I got from a RGB extraction and no issue on my side.
Tested with 1.0.5.

I think we need more information

Strange, I’ve just reinstalled 1.0.5 and it seems to work fine. No idea what happened there. Oh well.