diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderSeparator/SkeletonPartsRenderer.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderSeparator/SkeletonPartsRenderer.cs
index f27524eba..e071ece38 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderSeparator/SkeletonPartsRenderer.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderSeparator/SkeletonPartsRenderer.cs
@@ -94,7 +94,9 @@ namespace Spine.Unity {
 			meshFilter.sharedMesh = null;
 		}
 
-		public void RenderParts (ExposedList<SubmeshInstruction> instructions, int startSubmesh, int endSubmesh) {
+		public void RenderParts (SkeletonRenderer skeletonRenderer, ExposedList<SubmeshInstruction> instructions,
+			int startSubmesh, int endSubmesh) {
+
 			LazyIntialize();
 
 			// STEP 1: Create instruction
@@ -125,9 +127,12 @@ namespace Spine.Unity {
 				meshGenerator.FillVertexData(mesh);
 				if (updateTriangles) {
 					meshGenerator.FillTriangles(mesh);
-					meshRenderer.sharedMaterials = buffers.UpdateSharedMaterialsArray();
-				} else if (materialsChanged) {
-					meshRenderer.sharedMaterials = buffers.UpdateSharedMaterialsArray();
+				}
+				if (updateTriangles || materialsChanged) {
+					Material[] materials = buffers.UpdateSharedMaterialsArray();
+					if (skeletonRenderer)
+						skeletonRenderer.ConfigureMaterials(materials, currentInstructions.submeshInstructions);
+					meshRenderer.sharedMaterials = materials;
 				}
 				meshGenerator.FillLateVertexData(mesh);
 			}
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderSeparator/SkeletonRenderSeparator.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderSeparator/SkeletonRenderSeparator.cs
index b5397c0c8..f7e078427 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderSeparator/SkeletonRenderSeparator.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderSeparator/SkeletonRenderSeparator.cs
@@ -281,7 +281,7 @@ namespace Spine.Unity {
 					if (assignPropertyBlock)
 						currentRenderer.SetPropertyBlock(copiedBlock);
 					// Render
-					currentRenderer.RenderParts(instruction.submeshInstructions, start, si + 1);
+					currentRenderer.RenderParts(skeletonRenderer, instruction.submeshInstructions, start, si + 1);
 
 					start = si + 1;
 					rendererIndex++;
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs
index e6c07ab65..7d29a4171 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs
@@ -534,8 +534,7 @@ namespace Spine.Unity {
 			materialsNeedUpdate = false;
 		}
 
-		protected virtual void ConfigureMaterials (ExposedList<SubmeshInstruction> instructions) {
-			Material[] sharedMaterials = rendererBuffers.sharedMaterials;
+		public virtual void ConfigureMaterials (Material[] sharedMaterials, ExposedList<SubmeshInstruction> instructions) {
 			if (customMaterialOverride.Count > 0) {
 				for (int i = 0, count = sharedMaterials.Length; i < count; ++i) {
 					Material material = sharedMaterials[i];
@@ -570,6 +569,10 @@ namespace Spine.Unity {
 #endif
 		}
 
+		protected virtual void ConfigureMaterials (ExposedList<SubmeshInstruction> instructions) {
+			ConfigureMaterials(rendererBuffers.sharedMaterials, instructions);
+		}
+
 #if BUILT_IN_SPRITE_MASK_COMPONENT
 		private void InitSpriteMaskMaterialsMaskMode (ref MaterialOverrideSet[] maskMaterials,
 			SkeletonRenderer skeletonRenderer, string overrideSetName,
diff --git a/spine-unity/Assets/Spine/package.json b/spine-unity/Assets/Spine/package.json
index a5e288c03..5eab94bcc 100644
--- a/spine-unity/Assets/Spine/package.json
+++ b/spine-unity/Assets/Spine/package.json
@@ -2,7 +2,7 @@
 	"name": "com.esotericsoftware.spine.spine-unity",
 	"displayName": "spine-unity Runtime",
 	"description": "This plugin provides the spine-unity runtime core and examples. Spine Examples can be installed via the Samples tab.",
-	"version": "4.3.36",
+	"version": "4.3.37",
 	"unity": "2018.3",
 	"author": {
 		"name": "Esoteric Software",