So I'm very new to the whole map making thing, and I've stumbled across a weird problem where when I'm editing my map on Radiant I am able to see all the textures properly. But when I run the map in game all my walls have gone invisible (not really sure) and the floor has gone invisible as well. To top it all of I can't melee either or take any damage from zombies? Its super weird and I would appreciate any help as I've put a lot of time into the map.



Pleasee help, and thanks for even reading this lol