https://ezgif.com i had the same issue and used a “static” gif that was saved with just 1 frame on this site and it recognized it as a gif with the missing frames to, i wonder if it has to do with the photos app itself not displaying gifs properly? ive also noticed that i cant upload transparent bg images to discord without it loosing transparency and if your transparent image is too small (talking 100 x 100) then it also looses transparency but that one doesnt repost with transparency unlike this gif situation (however when i uploaded the small image with lost transparency to a photo editing/art app on my phone it DID upload with a transparent bg so idk what the deal is)