I’m working on a loadout UI right now where there is a humanoid inside a viewportframe. In Studio, playtesting it, the humanoid does its idle animations and such. But when I publish the game and run it live, no animations are happening. The ViewportFrame has a WorldModel that contains the character.
Was the animation made by someone else? If this is true and the game is owned by you, ask the player who made the animation to load it on to a rig and then publish the animation to your profile.
Animations need to be uploaded by the game’s creator in order for them to work in live sessions of the game.