Yes, I do save all from the file menu. There is one more thing breaking the nav mesh to me. I activate “is dynamic obstacle” inside a static mesh and that mesh stops being recognized by the navmesh. Probably I’m missing something, but it supposed to help with dynamic navmesh generation. I did solve the elevator tho, the only problem is that when it’s moving, I teleport 20cm into the floor due to the lagg. But i consider that acceptable.