Movable cup with "Use Complex Collision As Simple"

Hi, i want to make matinee animation with cup full of something, but collision - “Use Complex Collision As Simple” don’t working with movable meshes, please help me!!!

You will have to use another way to create a collision -> 1st or 2nd way:

i want to locate the ball in my cup

You can still use one of the two ways that I show in my video (e.g auto convex collision or a complex UCX collision) :slight_smile:!OoIBjSwI!hoS2pFchty7UjJiPAEkmKbvCWk_7CICwMOIimjYJeU4

still not working(auto convex)