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 c27351c8b..282848b60 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonRenderer.cs
@@ -117,7 +117,7 @@ namespace Spine.Unity {
 		/// <summary>Shader property ID used for the Stencil comparison function.</summary>
 		public static readonly int STENCIL_COMP_PARAM_ID = Shader.PropertyToID("_StencilComp");
 		/// <summary>Shader property value used as Stencil comparison function for <see cref="SpriteMaskInteraction.None"/>.</summary>
-		public const UnityEngine.Rendering.CompareFunction STENCIL_COMP_MASKINTERACTION_NONE = UnityEngine.Rendering.CompareFunction.Disabled;
+		public const UnityEngine.Rendering.CompareFunction STENCIL_COMP_MASKINTERACTION_NONE = UnityEngine.Rendering.CompareFunction.Always;
 		/// <summary>Shader property value used as Stencil comparison function for <see cref="SpriteMaskInteraction.VisibleInsideMask"/>.</summary>
 		public const UnityEngine.Rendering.CompareFunction STENCIL_COMP_MASKINTERACTION_VISIBLE_INSIDE = UnityEngine.Rendering.CompareFunction.LessEqual;
 		/// <summary>Shader property value used as Stencil comparison function for <see cref="SpriteMaskInteraction.VisibleOutsideMask"/>.</summary>
@@ -476,6 +476,12 @@ namespace Spine.Unity {
 		#if BUILT_IN_SPRITE_MASK_COMPONENT
 		private void AssignSpriteMaskMaterials()
 		{
+			#if UNITY_EDITOR
+			if (!Application.isPlaying) {
+				EditorFixStencilCompParameters();
+			}
+			#endif
+
 			if (maskMaterials.materialsMaskDisabled.Length > 0 && maskMaterials.materialsMaskDisabled[0] != null &&
 				maskInteraction == SpriteMaskInteraction.None) {
 				this.meshRenderer.materials = maskMaterials.materialsMaskDisabled;
@@ -523,6 +529,43 @@ namespace Spine.Unity {
 			}
 			return true;
 		}
+
+		#if UNITY_EDITOR
+		private void EditorFixStencilCompParameters() {
+			if (HasAnyStencilComp0Material())
+				FixAllProjectMaterialsStencilCompParameters();
+		}
+
+		private void FixAllProjectMaterialsStencilCompParameters() {
+			string[] materialGUIDS = UnityEditor.AssetDatabase.FindAssets("t:material");
+			foreach (var guid in materialGUIDS) {
+				string path = UnityEditor.AssetDatabase.GUIDToAssetPath(guid);
+				if (!string.IsNullOrEmpty(path)) {
+					var mat = UnityEditor.AssetDatabase.LoadAssetAtPath<Material>(path);
+					if (mat.HasProperty(STENCIL_COMP_PARAM_ID) && mat.GetFloat(STENCIL_COMP_PARAM_ID) == 0) {
+						mat.SetFloat(STENCIL_COMP_PARAM_ID, (int)STENCIL_COMP_MASKINTERACTION_NONE);
+					}
+				}
+			}
+			UnityEditor.AssetDatabase.Refresh();
+			UnityEditor.AssetDatabase.SaveAssets();
+		}
+
+		private bool HasAnyStencilComp0Material() {
+			if (meshRenderer == null)
+				return false;
+
+			foreach (var mat in meshRenderer.sharedMaterials) {
+				if (mat != null && mat.HasProperty(STENCIL_COMP_PARAM_ID)) {
+					float currentCompValue = mat.GetFloat(STENCIL_COMP_PARAM_ID);
+					if (currentCompValue == 0)
+						return true;
+				}
+			}
+			return true;
+		}
+		#endif // UNITY_EDITOR
+
 		#endif //#if BUILT_IN_SPRITE_MASK_COMPONENT
 	}
 }
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Ghost/Shaders/Spine-Special-Skeleton-Ghost.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Ghost/Shaders/Spine-Special-Skeleton-Ghost.shader
index bd529e3fc..85923c323 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Ghost/Shaders/Spine-Special-Skeleton-Ghost.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Ghost/Shaders/Spine-Special-Skeleton-Ghost.shader
@@ -8,7 +8,7 @@ Shader "Spine/Special/SkeletonGhost" {
 		[NoScaleOffset] _MainTex ("Base (RGB) Alpha (A)", 2D) = "white" {}
 		_TextureFade ("Texture Fade Out", Range(0,1)) = 0
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
     }
     SubShader {
 		Tags {
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Skeleton-Fill.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Skeleton-Fill.shader
index 12001cd57..423a13920 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Skeleton-Fill.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Skeleton-Fill.shader
@@ -10,7 +10,7 @@ Shader "Spine/Skeleton Fill" {
 		_Cutoff ("Shadow alpha cutoff", Range(0,1)) = 0.1
 		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 	SubShader {
 		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" }
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Skeleton-Tint.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Skeleton-Tint.shader
index 638e09c6f..5e4b458c7 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Skeleton-Tint.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Skeleton-Tint.shader
@@ -12,7 +12,7 @@ Shader "Spine/Skeleton Tint" {
 		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
 		_Cutoff ("Shadow alpha cutoff", Range(0,1)) = 0.1
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 
 	SubShader {
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Special-Skeleton-Grayscale.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Special-Skeleton-Grayscale.shader
index 80f30d38a..b11723950 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Special-Skeleton-Grayscale.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Spine-Special-Skeleton-Grayscale.shader
@@ -9,7 +9,7 @@ Shader "Spine/Special/Skeleton Grayscale" {
 		_Cutoff ("Shadow alpha cutoff", Range(0,1)) = 0.1
 		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 	SubShader {
 		Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" }
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesPixelLit.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesPixelLit.shader
index 8ee4d2c09..17117d679 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesPixelLit.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesPixelLit.shader
@@ -45,7 +45,7 @@ Shader "Spine/Sprite/Pixel Lit"
 		[HideInInspector] _RenderQueue ("__queue", Float) = 0.0
 		[HideInInspector] _Cull ("__cull", Float) = 0.0
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 	
 	SubShader
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesUnlit.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesUnlit.shader
index 56521c4ee..8bc8d902a 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesUnlit.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesUnlit.shader
@@ -27,7 +27,7 @@ Shader "Spine/Sprite/Unlit"
 		[HideInInspector] _RenderQueue ("__queue", Float) = 0.0
 		[HideInInspector] _Cull ("__cull", Float) = 0.0
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 	
 	SubShader
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesVertexLit.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesVertexLit.shader
index 7e7ebe415..2752efa86 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesVertexLit.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Modules/Shaders/Sprite/SpritesVertexLit.shader
@@ -45,7 +45,7 @@ Shader "Spine/Sprite/Vertex Lit"
 		[HideInInspector] _RenderQueue ("__queue", Float) = 0.0
 		[HideInInspector] _Cull ("__cull", Float) = 0.0
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 	
 	SubShader
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader
index 0b79b5364..1b270f25d 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader
@@ -12,7 +12,7 @@ Shader "Spine/Blend Modes/Skeleton PMA Additive" {
 		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
 		_Cutoff ("Shadow alpha cutoff", Range(0,1)) = 0.1
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 
 	SubShader {
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader
index 3d16848c6..18b4d7c4b 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader
@@ -12,7 +12,7 @@ Shader "Spine/Blend Modes/Skeleton PMA Multiply" {
 		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
 		_Cutoff ("Shadow alpha cutoff", Range(0,1)) = 0.1
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 
 	SubShader {
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader
index 1a1dfbf1c..dab802255 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader
@@ -12,7 +12,7 @@ Shader "Spine/Blend Modes/Skeleton PMA Screen" {
 		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
 		_Cutoff ("Shadow alpha cutoff", Range(0,1)) = 0.1
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 
 	SubShader {
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-TintBlack.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-TintBlack.shader
index f67810e52..de1262f5b 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-TintBlack.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-TintBlack.shader
@@ -14,7 +14,7 @@ Shader "Spine/Skeleton Tint Black" {
 		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
 		_Cutoff ("Shadow alpha cutoff", Range(0,1)) = 0.1
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 
 	SubShader {
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton.shader
index 3050d089c..308420be4 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton.shader
@@ -4,7 +4,7 @@ Shader "Spine/Skeleton" {
 		[NoScaleOffset] _MainTex ("Main Texture", 2D) = "black" {}
 		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 
 	SubShader {
diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-SkeletonLit.shader b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-SkeletonLit.shader
index 228a41566..cac6036d8 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-SkeletonLit.shader
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-SkeletonLit.shader
@@ -8,7 +8,7 @@ Shader "Spine/Skeleton Lit" {
 		[NoScaleOffset] _MainTex ("Main Texture", 2D) = "black" {}
 		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
 		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
-		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Compare", Float) = 0.0 // Disabled stencil test by default
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
 	}
 
 	SubShader {