Just as the title says, Floaty bits on NavMesh. I’m also having related problems HERE and HERE
That looks like something has corrupt collision, or something is broken with the navmesh generation.
Could you upload a reduced copy of your project which shows the problem so I can debug it?
I’m sorry but I can’t remake a copy and have the same effect. Since the navmesh was on a landscape, I smoothed it out and it seemed to went away. I was having trouble with the navmesh HERE