[4.7.5] Nav Modifier set to Null doesn't update NavMesh

I’ve been using Nav Modifiers to cut out the areas where I don’t want the AI to travel. Unfortunately, once I open up the level again the Nav Modifiers have no effect on the NavMesh unless I create new ones. It just won’t update, even if I build it manually. I’m currently using 4.7.5.

This is a know bug and has already been fixed in 4.8. But thanks for reporting it anyway, don’t ever hesitate to report AI bugs! :wink: