Melee troopers fighting each other cannot path around some obstacles

[peyote queen]

When two melee troopers engage around low walls, especially around stairs near T1 guardians, they can lock into a position where they are unable to hit each other through the wall. This causes them to swing at each other indefinitely without pathing into a valid attack position.

Just saw this in sandbox, but I've seen this happen rarely in games around the solo lanes.