When visiting the Patch Mgmt tab -> Membership page, you do not see the correct number of machines.
This issue occurs if any machines in the filter have the forth character of their name as a hypen, for example, the machine list has a machine called sam-pc or sbs-server - the forth character of the name is a - character
WORKAROUND / SOLUTION
Rename the agent, replacing the forth character with anything except a hypen, for example - sam-pc becomes sams-pc, or sbs-server becomes sbsserver
This is currently being investigated by the engineering team.
Please "follow" this article for further updates.
SVE-1838 / #69559