BW> But both menu options appear to be scanning all areas in all groups (i.e.
 BW> regardless of /G or not). I can see it scanning "everything" (it lists
 BW> all areas while scanning).
 BW> 
 BW> Is this also so for you?

The mnewscan menu works fine for me.  I can't really tell you more without seeing your ACS for your message bases, what group you are in and so on.  If you have a "global" group make sure you are not in it when you are scanning "current group" because that would obviously scan everything.

... The seminar on time travel will be held two weeks ago

--- Mystic BBS v1.12 A47 2021/07/23 (Windows/64)