I presume the reason is that we're both using my Steam account.
Kid's a bit unhappy now.
Is there any remedy short of installing MWO on another machine?
EDIT: Nevermind, shutting down completely and logging back in from scratch did the trick.
Looks like the shared Steam account was not a problem after all.
All peachy, move on, nothing to see here.
Edited by Frabby, 13 March 2021 - 03:00 AM.