Hi guys,
having the same issue with the same symptoms
-4 components of the landscape didn’t have nav mesh on it
- deleting them and adding, missing nav mesh starts to spread to adjusting components
- using smoothing tools makes nav mesh desapire
-ect
I found a workaround that worked for me. In the landscape menu, go to manage and to resize then just click apply with the same size. After that nav mesh got fixed for me, I didn’t lose foliage, height map, or vertex coloring on the terrain.
Unfurtantly, I don’t know how to reproduce to give you clear steps. My guess is that previewing height map on the components gets bugged for the nav mesh.
Am using Unreal 4.27.1 so it seems the bug is still there
Hope this help!
