Apologies, Oddbug! This is a known bug that Bogusred is currently in the process of sqashing :) The update of the server made the tolerances in colour profiles more stricter. It seems to be affecting Procreate users? I use Procreate, and if I upload the image to Discord and use that image to post I'm fine, but I think the fix for this bug will go life soon, so you can wait if you wish. 

I'll delete the blank images in the mean time ^^