my radio tower disappeared a little before midnight, and a while after that I got an 'invalid event' popup. around 7am ingame after getting 3 signals of cameras pointed at the signal desk, the screen went black, I got the 'do not look in the locker' popup, and the game crashed with another 'invalid event' popup (I think maybe because I had a locker open already it auto triggered the event?). after reloading the save the tower is back and everything seems normal again, though the daily drive+MRE shipment didn't arrive even after the tower returned.