All Prints too small in Z

All my Prints are too small Z. A 50x50x20mm part comes out as 50,05x50,05x19,45.

I use Orcaslicer but i already tried Prusaslicer for a while (without any success)

The printer has 0.6mm nozzles installed right now. I just redid beacon calibration again at 85c bed and 35c chamber. Same with VAOC Thermal Expansion.

I didnt touch z-offset because as far as i know thats the point of beacon contact?

Frist layer is ok but it a bit on the high side so there is some gaps. All other solid layers are filled perfectly.

Any ideas?
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