Padded the ShadowData struct so its a multiple of 16 bytes.

ScriptableRenderPipeline/Core/CoreRP/Shadow/ShadowBase.cs

     public struct ShadowData
     {
         // shadow texture related params (need to be set by ShadowmapBase and derivatives)
-        public Matrix4x4     shadowToWorld;  // from light space matrix
         public Vector4       proj;           // projection matrix value _00, _11, _22, _23
         public Vector3       pos;            // view matrix light position
         public Vector3       rot0;           // first column of view matrix rotation
         public uint          shadowType;     // determines the shadow algorithm, i.e. which map to sample and how to interpret the data
         public uint          payloadOffset;  // if this shadow type requires additional data it can be fetched from a global Buffer<uint> at payloadOffset.
         public float         slice;          // shadowmap slice
-        public float         edgeTolerance;  // specifies the offset along either the normal or view vector used for calculating the edge leak fixup
+        public float         edgeTolerance;  // specifies the offset along either the normal or view vector used for calculating the edge leak fixup
+        public Vector3       _pad;           // 16 byte padding
+        public Matrix4x4     shadowToWorld;  // from light space matrix
 
         public void PackShadowmapId( uint texIdx, uint sampIdx )
         {

ScriptableRenderPipeline/Core/CoreRP/Shadow/ShadowBase.cs.hlsl

 // PackingRules = Exact
 struct ShadowData
 {
-    float4x4 shadowToWorld;
     float4 proj;
     float3 pos;
     float3 rot0;
     uint shadowType;
     uint payloadOffset;
     float slice;
-    float edgeTolerance;
+    float edgeTolerance;
+    float3 _pad;
+    float4x4 shadowToWorld;
-float4x4 GetShadowToWorld(ShadowData value)
-{
-	return value.shadowToWorld;
-}
 float4 GetProj(ShadowData value)
 {
 	return value.proj;
 {
 	return value.slice;
 }
-float GetEdgeTolerance(ShadowData value)
-{
-	return value.edgeTolerance;
-}
 float4 GetViewBias(ShadowData value)
 {
 	return value.viewBias;
 	return value.nrmlBias;
+}
+float GetEdgeTolerance(ShadowData value)
+{
+	return value.edgeTolerance;
+}
+float3 Get_pad(ShadowData value)
+{
+	return value._pad;
+}
+float4x4 GetShadowToWorld(ShadowData value)
+{
+	return value.shadowToWorld;
 }