Ticket Priority unable to change

Unable to change ticket priority to another value then normal

chosing another priority is possible, but after Apply Changes,
the priority value moves back to normal

Infos:

• Used Zammad version: 6.2.0-1703848222.b78c3a07.centos8
• Used Zammad installation type: (package)
• Operating system: almalinux 8
• Browser + version: Edge for Business 122.0.2365.52 (Offizielles Build) (64-Bit)

Expected behavior:

Actual behavior:

Steps to reproduce the behavior: