Same thing happened to me with Farm+ (landed harvester I think it was) map using ufoai-2.3-dev-win32-24654.
EDIT: My crash was a few turns in however.
EDIT #2: Happens pretty thoroughly now, error is:
ERROR: LET_PathMove: Actor Move is out of sync: 127:128:0, should be 123:126:0 (Step 6 of 6) (Team 1)
This is 24761 running on Vista x64
I can upload the save if it's worthwhile right before the mission start