Imported FBX not acting as Obstacle to Nav Mesh

My imported fbx does not cause a Nav Mesh Obstacle. AI tries to walk through it instead of pathing around it.

The AI cannot actually walk through the object but it does not try to go around either.
The behavior works just fine with unreal’s default static meshs.

I have tried different importing options, my objects have collision and block world objects just fine.
They are just not being considered for Nav Mesh obstacles and results in my AI trying to walk through the object instead of pathing around.

How can I make my imports create an obstacle in the nav mesh?

Thanks.

My items were working just fine in the Nav Mesh as obstacles.
My problem was caused by a setting I had in the Nav Mesh option combined with the imported objects dimensions.