Question [HDRP] Custom render pass SetGlobalTexture issue

I am trying to render a buffer mask using a custom render pass and set a global shader texture to use this texture. I have been able to achieve the masking I want, but when I try to pass the texture to the shaders it doesnt seem to be showing up. Im not sure what i am doing wrong. I was able to achieve this in URP with a custom pass almost identical to the setup here minus the obvious differences in creating a custom pass between URP and HDRP. The only real difference I can see is I was using a temporary render texture in URP with GetTemporaryRT

Here is the meat of my custom render pass.

Code (CSharp):

1.  protected override void Setup(ScriptableRenderContext renderContext, CommandBuffer cmd)
2.     {
3.         shaderTags = new ShaderTagId[3]
4.         {
5.             new ShaderTagId("Forward"),
6.             new ShaderTagId("ForwardOnly"),
7.             new ShaderTagId("")
8.         };
9.  
10.         maskBuffer = RTHandles.Alloc(
11.             Vector2.one, TextureXR.slices, dimension: TextureXR.dimension,
12.             colorFormat: GraphicsFormat.R16G16B16A16_SFloat,
13.             useDynamicScale: true, enableRandomWrite: true,name: "_MaskBuffer"
14.         );
15.  
16.         maskDepthBuffer = RTHandles.Alloc(
17.                  Vector2.one, TextureXR.slices, dimension: TextureXR.dimension,
18.                  colorFormat: GraphicsFormat.R16_UInt, useDynamicScale: true,
19.                  name: "_MaskBufferDepth", depthBufferBits: DepthBits.Depth16
20.              );
21.     }
22.  
23.  
24. protected override void Execute(ScriptableRenderContext renderContext, CommandBuffer cmd, HDCamera hdCamera, CullingResults cullingResult)
25.     {
26.         if (staticMaterial == null || dynamicMaterial == null || (!drawStatic && !drawDynamic))
27.         {
28.             return;
29.         }
30.  
31.         //This is not working
32.         //*****
33.         cmd.SetGlobalTexture("_MaskBuffer", maskBuffer);
34.         //I have also tried:
35.         //cmd.SetGlobalTexture("_MaskBuffer", maskBuffer.nameID);
36.         //cmd.SetGlobalTexture("_MaskBuffer", maskBuffer.rt);
37.         //Shader.SetGlobalTexture("_MaskBuffer", maskBuffer);
38.         //Shader.SetGlobalTexture("_MaskBuffer", maskBuffer.rt);
39.         //*****
40.  
41.         CoreUtils.SetRenderTarget(cmd, maskBuffer, maskDepthBuffer, ClearFlag.All);    
42.         if (drawStatic)
43.         {
44.             Render(renderContext, cmd, hdCamera, cullingResult, staticMask, staticMaterial);
45.         }
46.         if (drawDynamic)
47.         {
48.             Render(renderContext, cmd, hdCamera, cullingResult, dynamicMask, dynamicMaterial);
49.         }
50.         SetCameraRenderTarget(cmd);
51.     }
52.  
53.  
54. void Render(ScriptableRenderContext renderContext, CommandBuffer cmd, HDCamera hdCamera, CullingResults cullingResult, LayerMask LayerMask, Material material)
55.     {
56.         var renstateBlock = new RenderStateBlock(RenderStateMask.Depth)
57.         {
58.             depthState = new DepthState(true, depthCompareFunction),
59.             stencilState = new StencilState(false),
60.         };
61.  
62.         var result = new RendererListDesc(shaderTags, cullingResult, hdCamera.camera)
63.         {
64.             rendererConfiguration = PerObjectData.None,
65.             renderQueueRange = GetRenderQueueRange(renderQueueType),
66.             sortingCriteria = Sorting,
67.             excludeObjectMotionVectors = false,
68.             overrideMaterial = material,
69.             overrideMaterialPassIndex = (material != null) ? material.FindPass(overrideMaterialPassName) : 0,
70.             stateBlock = renstateBlock,
71.             layerMask = LayerMask,
72.         };
73.      
74.         // Render objects into the custom buffer:
75.         HDUtils.DrawRendererList(renderContext, cmd, RendererList.Create(result));
76.     }

Here is the result of this pass I would like to set as a global texture as seen via frame debugger



Here is the shader and the custom function I am using to retrieve the texture.



The expected result is for the render texture to appear on the cube, but as you can see it isnt. Im not sure what I am doing wrong.