I was playing sorta warfare. Stayed in my APC and let AIs from back go outside to go front check wheter there is no AT soldiers in town.
https://www.youtube.com/watch?v=PgdBvDnO5-k&feature=youtu.be - this happened. While AI was moving though town, some of them stucked in house. Whenever I tried to call them back or order them to move, they denied and stayed in house or in pre-prepared position in front of it.
This or similar bugs were happening to me even in Arma 2, but after so many years I think it is time to get this fixed.