Baking NavigationMesh doesn't bake after adding NavigationMesh

Godot Version

4.3

Question

`When using a .glb Object in the scene why can I not bake a NavigationMesh? I also experimented with making a CSGBox3D and making it the same size as the road but it still doesn’t bake. But if I tweak the box size and make it larger it will bake. I don’t fully understand the constraints here. Why does it have to be a certain size? And how can I make it work so that the NavigationMesh will bake for the road?

My goal in the end is to create a Sim City like game where when I place roads the NPCs will walk down the roads.

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