Similar issue reported on Steam with a turret:
"On the first mission after the tutorial my crystal bot blocked itself on the last move to the exit because a turret was on it's path. He wasn't able to move out of the turret and ended my game."
https://steamcommunity.com/app/1485590/discussions/0/3877095200001130115/
Copied from a discord report:
Not game breaking but I was wondering why my crystal bot was taking so long lol
(Crystal bot got stuck on an explodable barrel while trying to get to another location.)