Finaly found the Problem. Was related with my fix for the wrong hyrbid-corexy kinematic. I will update the solution so nobody will have the same Problem. The kinematic also had an update during this period.
https://klipper.discourse.group/t/problem-hybrid-corexy-kinematic/13184
The Problem was that the X-Position in the kinematics wasen’t calculated correctly. Therfore it changed the value when it reloaded the value. For some reason it does this on the can board for the first try and for the mainboard on the second.
The Command to identify this problem is “GET_POSITION”.
Thanks everybody who helped me on this journey 