Thank you. I'll try that and post my results 
 **UPDATE** 
OK, I tried taking both the custom major and career out of my Downloads folder, tested the game, and the object still isn't there. After that, I decided to try uninstalling Uni (I backed up my files first, of course) and then re-installed it; the object is still missing. I'm going to look through the most recent Custom Content I've downloaded and see if maybe that's the problem. I will keep you posted. 
**UPDATE 2** 
Well, I checked my most recent CC and that doesn't seem to be the problem either. I'm at a complete loss. In the meantime, I've substituted the espresso cart for the regular self-serve espresso machine on community lots.