See above. I did not see (or notice) that before applying that PRU.

Also nice to see there is a System and a System - System Bundles page,
which contains information I did not notice before. There the bundles
of the PRU show for all effectlively affected machines an Assignment
Status of Targeted and Effective, an Deployment Status of (Devices)
Succeeded and no Launch Status.

Sever is running ZCM 11.2.2 Monthly UPdate 1.

Is this normal behaviour. If I look into Configuration - System Updates
the PRU shows as Baselined and applied to all managed systems.
W. Prindl