Profile images are sometimes compressed to fit better and load more quickly. This compression usually just makes your image look smaller, but it can sometimes make animated images look funky. In the compressed version, the image may stop being animated...

If you want to use an animated image, your best bet is to try to avoid any compression:

• Make sure your image is smaller than 50kb
• Make sure your image is smaller than 170 x 170 pixels
• Then try reuploading it.