Help using my animations in friend's game

I recently made an animation, and I want to use it in my friend’s game. Problem is, when I use it in his game, it breaks, but when I use it in my game, it’s perfectly fine. Could anyone provide some information on how to solve this problem?

Any help is appreciated, thanks!

Animation that you made will only work for your games, same goes with groups. You need to give your friend the animations so he can upload them as a file or in roblox studio.

Would I save the Animation file (the one with the roll of film as an icon?)

Import or make your animation in a dummy or an npc , save it then it will stay there and your friend can upload it to roblox.

Or you can take your animation from the toolbox and place it in “AnimSaves” or just give your friend the animation from the toolbox