That particular version has been problematic for AE in the past. Do the other workstations also run that particular OS?
Yes. The other work stations are running that OS.
Qmaster is not being used, that I know of, but it does show in the Activity Monitor. This machine is on our gigabit switch but only connecting to the server to get to network storage. It has 4GB memory and I’m checking the Activity Monitor and it’s maxing out at 3.99GB.