Can't upload photos in any forum, including /c/Photography

Can anyone else upload photos anymore? I haven't been able to do so in days. Is it an error with imagemagick? I keep getting some error that flashes briefly about exceeding maximum dimensions, but I used to upload just fine. Weird. Just asking, since I can't seem to post photos at all anwhere on discuss.online. I can try on another instance, just to see what's going on...