Image uploads seem broken

[cfjedimaster]

When I select an image to upload, I get "Upload error" most of the time. I say "most" because I tested 4-5 times and it failed, then it worked, and now it won't work.

Consistently, this image works:

And this image (and others) are failing:

Devtools don't really say anything clear that I can see.

[CSmith1998]

I've been running into more or less the same issue. It's admittedly a bit of a pain because the tool seems super handy