You probably have the file saved as something other than the required extensions. I know tumblr saves with a new file type than a .gif which is such a pain to deal with. So I'd just make sure to re-export it in the required extension.
ok so I drew this thing. it was just a simple drawing, similar to this: https://toyhou.se/2033260.-tarnish#18591618 but when I tried to upload it, I got an error that said "the image must be an image" (ah yes, the floor is made out of floor) and "the image must be a file of type: jpeg, gif, png." help??
I’ve never had that happen before. I’ve had a gif that (looks like it would be a way smaller file than yours) not work with watermarking. So I can see the full animation, but the watermarked version is just the first frame
The only thing I could think would be to save the file again and try to submit the new one
And yes
