after some experimenting it seems to be a size limit thing.
Viewing post in Gif's suddenly not animating
They must have changed how a new page is templated then, these work , from 3 months ago https://beatscribe.itch.io/gbbbs95 these from last week , do not https://beatscribe.itch.io/ultimate-lofi-game-boy, if you click them you’ll see they are animated gifs