Cutting geometry with ConcaveMeshSlicer (CSG)

Godot Version

4.3

Question

I want to create a little game that allows you to cut rectangle shapes that stack on each other. The cutting plane is based on the last size of the rectangle but for now I’ll have it positioned on the left side. When I press space the current cake part needs to be sliced and fallen to the ground. Basically, I did all this and I make use of the latest concave mesh slicer plugin of Picode (Godot 4 Concave Mesh Slicer - Godot Asset Library). Still, I’m unable to make proper cuts

I implemented all needed routines but the cut pieces are never as it should be

btw since I’m a c# native I’ve coded the main code in C# but I think this is not a problem
Also I’ve tested my geometry in the example scene of picode mesh slicer and that mesh just sliced as it should.

Who knows what is wrong with my scene, its driving me mad.

source