Problem using NavMesh.SamplePosition

Having issues using SamplePosition. Its not returning a spot on the nav mesh. Returns the same spot my RandomPosition is set too.

I guess its cause im using NavMesh.AllAreas. I just want walkable areas.
If I set it to 1 << 0. SamplePosition returns false.

Code (csharp):

1.  
2.              RandomPosition = new Vector3(-19.38f, 128, -93.07f); // Override Test
3.          
4.  
5.             if(NavMesh.SamplePosition(RandomPosition, out NavMeshHit myNavHit, 100 , NavMesh.AllAreas)){
6.                 Debug.Log(myNavHit.position);
7.                 TargetPosition = myNavHit.position;
8.             }
9.  

This is a picture showing that I set the RandomPosition to be inside this building where Navmesh does not go.

 

Bump. Really stumped here

 

My next step i guess is to make a separate project and send it in as a bug.
Wondering if someone could at least maybe back me up in thinking this looks like a bug.
Using Unity 2018.3.6

 

Bump