[@A Ticklish Ralt] That said, you should make sure the format is .gif and not .gifv, which are more akin to .webm or .mp4 files. I typically encounter that file format when uploading anything animated to, say, Imgur. Since the guild doesn't play nice with that format, it won't display on the guild like it should. You can usually get away with just dropping the "v" from .gifv to get it working again, though.