A few weeks ago, I purchased an Avatar Animation from Kapp'n's Boathouse. My current profile picture is supposed to be a gif, yet not working. I really hope that I didn't waste 10 seashells. If anyone knows whats gone wrong, please let me know! Also I don't think the files I used were too big, since they're pixelated images, but who knows? (not me, anyway..)
did you resize the gif to 100x100 first? you can use this website to do it if you haven't already. besides that, make sure the avatar animation is active in your inventory!
