d3bots using .nav files

was going to navmesh a map that has a .nav file built in its addon but just realised d3bots spawned in randomly without no navmesh they even managed to find the sigils and broke them then pathed to me i think somethings wrong or i just dont know they are mostly spazzing out at the moves too they are able to crouch to vents rarely the map is https://steamcommunity.com/sharedfiles/filedetails/?id=3143155261