diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonGraphic.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonGraphic.cs
index 5f94a7e58..e89362338 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonGraphic.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonGraphic.cs
@@ -540,7 +540,7 @@ namespace Spine.Unity {
 			if (mesh == null) {
 				return false;
 			}
-			if (mesh.vertexCount == 0) {
+			if (mesh.vertexCount == 0 || mesh.bounds.size == Vector3.zero) {
 				this.rectTransform.sizeDelta = new Vector2(50f, 50f);
 				this.rectTransform.pivot = new Vector2(0.5f, 0.5f);
 				return false;
@@ -572,7 +572,7 @@ namespace Spine.Unity {
 				}
 			}
 
-			if (!anyBoundsAdded) {
+			if (!anyBoundsAdded || combinedBounds.size == Vector3.zero) {
 				this.rectTransform.sizeDelta = new Vector2(50f, 50f);
 				this.rectTransform.pivot = new Vector2(0.5f, 0.5f);
 				return false;
diff --git a/spine-unity/Assets/Spine/package.json b/spine-unity/Assets/Spine/package.json
index 45c7dccac..bd6c23df3 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.",
-	"version": "4.1.38",
+	"version": "4.1.39",
 	"unity": "2018.3",
 	"author": {
 		"name": "Esoteric Software",