[BH] Employees disappear after loading screen

I've recently bought the expansion pack business and hobbies. When I've opened my first business, I noticed that my employees don't stay hired. It mostly occurs after I've gone to another lot. I have to re-employ those Sims and give them their tasks over and over again whenever I open the store. It's really annoying. Is there any way to fix that? If not, I would be very happy this would get fixed in the next update.