TRS mesh is not constant

[_Aka_]

For now I fixed it using TRS Shape instead of TRS Mesh but don't know what is the difference but it works!

The difference is that TRS Shape transforms a shape (and similarly with TRS Path) that is the input of your extrusion process. The output off that process is a mesh, and TRS Mesh transforms that output. So basically you switch from transforming the output to transforming the input, which leads to similar results.