Just a bug I think and posting this for someone to confirm.
I have groups of workstations for patch management. In a small group of say 10 machines, for each patch applied to the group as a baseline, it displays the number of machines "Patched" and "Not Patched". Buy selecting the number, say 3 machines, it use to list those machines. Now, 11.4.1 lists lots of machines from other groups. In 11.3.2, if it displayed 3 machines, it would bring those machines up OK.

Also my "Patched" and "Not Patched" columns sometimes just display "0" for all patches. Selecting the "0" will bring up a list of machines! I remember this originally going astray way back in the 10.x to 11.x update days. So it may be an old problem just compounding itself.