Really lost on whats going on here

My character is at the bottom of a lake.
I"m casting a ray to hit the bottom of the terrain. This works no issue.
Then I'm taking that point and casting it back up to hit a box collier on the surface of the water.
It never hits the layer 4.
The surface water collider is a Trigger.

My debug ray points just how the ray cast should.
If I remove the Layer Mask the raycast will hit my character as expected it would.

So idk what I'm doing wrong.
Unity 2018.3.4

Code (csharp):

1.  
2.  
3.             if (Physics.Raycast(SwimDetector.position, -m_Transform.up, out RaycastHit m_RaycastTerrainHit, Mathf.Infinity, LayerManager.Mask.IgnoreInvisibleLayersPlayer)) {
4.  
5.                             Debug.DrawRay(m_RaycastTerrainHit.point, m_Transform.up * 100, Color.yellow);
6.  
7.                 int layerMask = 1 << 4;
8.  
9.                 if(Physics.Raycast(m_RaycastTerrainHit.point, m_Transform.up, out RaycastHit m_RaycastWaterHit, Mathf.Infinity, layerMask,QueryTriggerInteraction.Collide)){
10.  
11.  
12. // this never hits anything
13.  
14.                     return m_RaycastWaterHit.distance - m_RaycastTerrainHit.distance > m_SwimDepth;
15.                 }
16.             }
17.  
18.  

 

Nevermind I guess it does work

 

edit -> physics -> Queries Hit Triggers = true

might be it?