I had this map before I had to reinstall gmod and removed all my addons to save storage so I wouldn't have to wait like 1000 years for all the addons to reinstall again since I've had gmod for quite some time and this map had a nav mesh cause I generated one (pretty sure), then when I try generating a nav-mesh now it gets to 23 then freezes and doesn't respond, don't know if I am not letting it have enough time to generate or its just unable to generate. (this is my first discussions post btw)