Using P3Dv4. The aircraft are in/at the assigned parking spots, but they do not depart - no taxi nada. I have the following. time set for 24hr local time (same problem if I use GMT) with a 09:00 departure. I have sat in another aircraft on the tarmac for 3 hours (using 2x speed) and the aircraft never moves. Any idea why this might be? Any help appreciated.