TO make things clear, i show an example:
I have a group, called "PROXY", with permission ONLY
to the squid proxy server module
I have a user attached to that group, called "A"
I have the user "admin" (all permissions)
The user A is logged, working normally, then "admin"
logs in. The result is that user A gets "ALL RIGHTS"
from admin while it's logged in.
The same thing happens in the reverse situation:
admin is logged in and user A comes in.....
Admin "loses all rights", except those that user A
has..
Logged In: YES
user_id=129364
Are both users logging in from the same machine, to the
same webmin URL? If so, the problem is that your browser
only keeps one login at a time - so if you are logged in
as user A and then login again as admin, user A will be
logged out.
This will not happen if the two users are logged in from
different machines ..