V3-KE: permanent Z shift

Since a few days, my printer seems to have a constant shift in Z. The nozzle is too high and the PLA therefore doesn’t stick to the bed.

I cannot find how to change that Z offset.

I tried auto-callibrating (which is what the printer does when you first configure it) and also print with callibration. It won’t fix the problem.

Can anyone please tell me how and where to find how to shift the z appropriately?

thx!

I’m not positive but I think Creality is aware of this and is working on a software or maybe a firmware update to address the issue: