diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Mesh Generation/SkeletonRendererInstruction.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Mesh Generation/SkeletonRendererInstruction.cs
index c08c87de0..2c23d0a6e 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Mesh Generation/SkeletonRendererInstruction.cs	
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Mesh Generation/SkeletonRendererInstruction.cs	
@@ -147,14 +147,14 @@ namespace Spine.Unity {
 			if (calledFromMainThread && !Application.isPlaying)
 				return true;
 #endif
-
 			if (a.hasActiveClipping || b.hasActiveClipping) return true; // Triangles are unpredictable when clipping is active.
 
+			if (a.immutableTriangles != b.immutableTriangles) return true;
+			if (a.immutableTriangles) return false;
+
 			// Everything below assumes the raw vertex and triangle counts were used. (ie, no clipping was done)
 			if (a.rawVertexCount != b.rawVertexCount) return true;
 
-			if (a.immutableTriangles != b.immutableTriangles) return true;
-
 			int attachmentCountB = b.attachments.Count;
 			if (a.attachments.Count != attachmentCountB) return true; // Bounds check for the looped storedAttachments count below.