The only add on I have is the master controller mod. Unfortunately my current game is unplayable without it, as I have yet another glitch where the town has no icons/markers. Using that mod to reset my lot has been the only fix to that problem so far, so I strongly prefer not to remove it if I don't have to.
Thanks again for the help!
I'm keeping my fingers crossed and hoping the problem solved itself actually. My sim ended up having an opportunity where he needed to travel to the future. He doesn't have a career in the future and therefore, no career outfits either! I'll see what happens when he returns back to the past, but it seems I won't have the extra outfits, as long as he doesn't have a career. If worse comes to worse, my sim can just have an "early retirement" and exploit the family plumbots to bring in income.