A sprite getting stuck on the first frame is an indication that the sprites are getting changed at least twice in each game frame. Here is a recent post by @BigChalkGames explaining it, and here is a link to an earlier one addressing the same issue.
A sprite getting stuck on the first frame is an indication that the sprites are getting changed at least twice in each game frame. Here is a recent post by @BigChalkGames explaining it, and here is a link to an earlier one addressing the same issue.