I keep getting "Access Violation 0x004DAA13" on mission 15 and 21. If I try to load a save from 15 I get the same error. Can't complete that mission.

Edit:
Solved it by restarting the missions.

Edit2:
Great now I got one on mission 22 and restarting mission doesn't solve it.

Edit3:
Seems that if I just put the gameplay speed on slow it doesn't cause the error.