Did one of your sims get pregnant or give birth? Women get maternity leave for their pregnancy and men get paternity leave once the baby is born. If there are no babies, then nevermind. I have had a glitch where my sim went to work and stayed at work 5 or 6 hours longer than they were supposed to, but it wasn't a permanent thing. Sometimes it would happen, but most of the time it wouldn't. It's possible that this glitch is similar. Just play through a sim week or two and see if you keep getting the glitch. But to answer your original question, you shouldn't get that glitch in a new game. Glitches vary from save to save, and there's no link to glitches from one save getting into the other save (that I know of).