Re: Changing careers removes vacation days.
Okay - I have a definitive answer. I have four Sims in the same household. I took vacations days so that each had a different amount 1, 2, 3, and 4. When I changed all of their jobs (and the Sim with one day left, I changed it while he was *on* vacation) - it reset the vacation time to 3 days for all of them. So @Netguysteve is correct - this is not a bug after all.
Prolly shoulda checked it out more carefully before complaining about it!