LayerMasks Do Not Function on Physics2D.Raycast in Unity 2019.3.7f1

As the title says - the layermasks are not working correctly.

This is my layermask:

Code (CSharp):

1.     private static int _PurrtatoPlacementAnchorLayerMask = -1;
2.     public static int PHYSLAYER_PurrtatoPlacementAnchorLayerMask
3.     {
4.         get
5.         {
6.             if (_PurrtatoPlacementAnchorLayerMask == -1)
7.                 _PurrtatoPlacementAnchorLayerMask = LayerMask.GetMask(new string[]{"PurrtatoDragging",
8.                                                                                    "PurrtatoDraggingBadConnect",
9.                                                                                    "PurrtatoDraggingCanConnect",
10.                                                                                    "Purrtato"});
11.  
12.             return _PurrtatoPlacementAnchorLayerMask;
13.         }
14.     }

I then perform my raycasts in code:

Code (CSharp):

1.  
2. RaycastHit2D MiddleRaycast = Physics2D.Raycast(middlePoint, (middlePoint - linkPosition).normalized, maxRaycastDistance, ~PurrtatoValues.PHYSLAYER_PurrtatoPlacementAnchorLayerMask);                      

We want to hit everything NOT in the LayerMask, therefore I have flipped the bits on the layermask. Based on this, the "Purrtato" layermask should not be getting hit.

I then have code that checks if the MiddleRaycast.collider is null or not, and handles this as necessary, like this:

Code (CSharp):

1.                     if (MiddleRaycast.collider != null)
2.                     {
3.                         distanceList.Add(new distanceElements()
4.                         {
5.                             distance = Vector3.Distance(middlePoint, MiddleRaycast.point),
6.                             linkPoint = MiddleRaycast.point,
7.                         });
8.                         Debug.LogError("MID COLLIDER: " + MiddleRaycast.collider.name + " / " + LayerMask.LayerToName(MiddleRaycast.collider.gameObject.layer), MiddleRaycast.collider.gameObject);
9.                         Debug.DrawLine(middlePoint, MiddleRaycast.point, Color.green, 100f);
10.                     }

Based on all of the above, the "Purrtato" LayerMask, again, should never get hit. However, in testing this code, it gets hit, as is evident from this debug output:

Code (CSharp):

1. MID COLLIDER: Tater_Guard(Clone) / Purrtato

Note that I've found numerous issues related to LayerMask in Physics2D.Raycast in this version of Unity, but all issues are similar to this, with layers getting hit that are clearly masked out. This issue just shows the issue pretty strongly and specifically.

Can anyone spot something wrong in my code, of verify that LayerMasks are indeed broken for 2D Physics in Unity 2019.3.7f1?

Thank you!

 

If you can prove this with hard numbers, ie., I ask to mask out layer 13 and you still hit it, then make a tiny project and report the bug to Unity. They really do fix bugs like this.

If you cannot repro this super-easy obvious bug, then go over your code until you find out why your above code, which is far too complicated to reason about by study, differs from the proven trivial case.