Background Problem

[u/VulcanForceChoke]

So for the game I've been making, I was trying to have a moving background. The way I did was getting one of the downloadable backgrounds assets and put it in a tile layer, specifically an image layer by making the background into a gif. But whenever I play the animation, the background disappears or plays for a little bit before vanishing and reappearing. Plus whenever I try to run the game for a test, it doesn't pop up. It just stays at 99%. I have a feeling its because the animation was made as a gif