diff --git a/spine-cocos2dx/src/spine/AttachmentVertices.cpp b/spine-cocos2dx/src/spine/AttachmentVertices.cpp
index 698b3118b..0340f3a7f 100644
--- a/spine-cocos2dx/src/spine/AttachmentVertices.cpp
+++ b/spine-cocos2dx/src/spine/AttachmentVertices.cpp
@@ -35,6 +35,7 @@ namespace spine {
 
 AttachmentVertices::AttachmentVertices (Texture2D* texture, int verticesCount, unsigned short* triangles, int trianglesCount) {
 	_texture = texture;
+	if (_texture) _texture->retain();
 
 	_triangles = new TrianglesCommand::Triangles();
 	_triangles->verts = new V3F_C4B_T2F[verticesCount];
@@ -46,6 +47,7 @@ AttachmentVertices::AttachmentVertices (Texture2D* texture, int verticesCount, u
 AttachmentVertices::~AttachmentVertices () {
 	delete [] _triangles->verts;
 	delete _triangles;
+	if (_texture) _texture->release();
 }
 
 }
diff --git a/spine-unity/Assets/Spine/Editor/spine-unity/Editor/Asset Types/SkeletonDataAssetInspector.cs b/spine-unity/Assets/Spine/Editor/spine-unity/Editor/Asset Types/SkeletonDataAssetInspector.cs
index cbd2e7ed8..3817aab83 100644
--- a/spine-unity/Assets/Spine/Editor/spine-unity/Editor/Asset Types/SkeletonDataAssetInspector.cs	
+++ b/spine-unity/Assets/Spine/Editor/spine-unity/Editor/Asset Types/SkeletonDataAssetInspector.cs	
@@ -696,11 +696,8 @@ namespace Spine.Unity.Editor {
 		SkeletonAnimation skeletonAnimation;
 		GameObject previewGameObject;
 		internal bool requiresRefresh;
-
-		#if !SPINE_UNITY_2018_PREVIEW_API
 		float animationLastTime;
-		#endif
-
+		
 		static float CurrentTime { get { return (float)EditorApplication.timeSinceStartup; } }
 
 		Action Repaint;
@@ -793,10 +790,8 @@ namespace Spine.Unity.Editor {
 
 			if (previewRenderUtility == null) {
 				previewRenderUtility = new PreviewRenderUtility(true);
-				#if !SPINE_UNITY_2018_PREVIEW_API
 				animationLastTime = CurrentTime;
-				#endif
-
+				
 				const int PreviewLayer = 30;
 				const int PreviewCameraCullingMask = 1 << PreviewLayer;
 
@@ -885,12 +880,10 @@ namespace Spine.Unity.Editor {
 
 				
 				if (!EditorApplication.isPlaying) {
-					#if !SPINE_UNITY_2018_PREVIEW_API
 					float current = CurrentTime;
 					float deltaTime = (current - animationLastTime);
 					skeletonAnimation.Update(deltaTime);
 					animationLastTime = current;
-					#endif
 					skeletonAnimation.LateUpdate();
 				}