Ball moves along subdivision

Godot Version: 4.2.1 stable

Hello,
I’ve been playing around with the physics and collider settings all day and haven’t got any results. I also tried the jolt engine.

I have a CSG box in which I have cut a hole using CSG Combiner and CSG Cylinder.
This causes the collision element that was assigned to the combiner to be subdivided.

The problem is that as soon as the ball is moved over the subdivision, a collision is triggered and it moves alone the subdivision.

The ball is a Rigidbody, which is also available as a CharacterBody3D. Same problem.

The same result with individual, manually placed Collisionshape3D nodes and without CSG.
Bildschirmfoto 2023-12-30 um 20.12.54