My problem is, that the mass point of the body maintains at the position where the body is connected to it's scenenode, but it should move to the "new" middle of the Geometry.
Is there anything I'm doing wrong, or is there any way to fix this.
the center of mass is always at the center of the body, geometries don't have mass only bodies, you can cause the effect of a mass offset by offsetting the geometry in the opposite direction