For me the thumbnails have been dark but the submissions seem normal (though I guess if they're dim or dark I don't know what the regular version is supposd to look like so I wouldn't know XD)

I just figured it was a FA problem.

Seems to be a file transfer problem in general on my end. Either uploading here or through any messenger service. X3 Has to do with how my app for drawing (Krita, btw. Save for this lil issue, its a GREAT program for digital artistry) and the manner it saves png/jpg after an update. But I think I got it fixed~! ^__^