Issue with turrets and bot movement in CO-OP VS AI

If a bot is walking between a turret and a trinket ward dropped in front of them may be stopping their movement for a brief period of time.

I had a rammus bot using his Q coming toward me. The moment he got between the destroyed inner turret on the red side and the wall I placed the ward in front of him and he stopped moving completely. He still went into defensive ball curl but he would not move from that spot for a while. I was playing tristana at the time that I did this and used the yellow trinket ward.