Small Business resets employees every time game is launched

My current save file has a sim with a small business in their home. During gameplay the business works as intended except that every time I launch the game their business has reset to have no employees. The business itself does not rest; it retains its level, perks, and custom employee outfits but there are no employees. I am able to hire back the same sims but obviously it's annoying to have to rehire and reassign them every time I boot up the game. There is no error message. 

no mods or cc, play on PC, game updated