First of all most .gifs that you are thinking to upload are too large, small good sizes like 100x100, they work the best, they are the only sizes that I think work. You can also get good .gifs from websites all over the internet. The size maters too, good sizes for fast uploads are 30kb. If they take forever to upload refresh the page after a time, that might work, MIGHT. hope this is helpful and if any questions that need answers send me a message. Thank You and hope this was helpful.

Problems: I upload it and refresh and its not in motion.
Problem: Its dimensions are probably too large or its an old gif.