I ran into the same issue. For me it was the navmesh volume not properly setup. If you hit P in the editor or go to show/navigation you should see green everywhere you want to teleport. If not then it could be the collisions for the objects or something in the navmesh settings maybe. I didn’t want to create collisions for my geometry so i just dropped in boxes and set them to be invisible and it worked for me. Hopefully this helps.