Dear community! Some months ago I started to work on two maps for ut 4. One of them is based on Deck-16 testmap and looks like this
After I have updated unreal engine up to 4.16.2 and last patch on the editor a strange geometry error happens every time, after I try to build all or even buld only geometry. One large area of my map becomes impassable and all entrances to this area are blocked by grey textures. Its likes the editor does invert subtractive geometry to additive geometry. I just don,t know what to do and I have spent so much work on this level, I will not give it up due to editor bugs.