diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9acb6ff..04de1ad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# [3.0.0-preview.8](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v3.0.0-preview.7...v3.0.0-preview.8) (2020-03-03)
+
+
+### Bug Fixes
+
+* abnormal Mesh Bounds with Particle Trails ([518a749](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/518a7497105a114a0f6b1782df0c35ba0aecfab2)), closes [#61](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/61)
+* multiple UIParticleOverlayCamera in scene ([3f09395](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/3f093958b3353463d6c5bd29ef3338203d4e41d7)), closes [#73](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/73)
+
 # [3.0.0-preview.7](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v3.0.0-preview.6...v3.0.0-preview.7) (2020-03-02)
 
 
diff --git a/Scripts/UIParticle.cs b/Scripts/UIParticle.cs
index 923ad10..4a66702 100755
--- a/Scripts/UIParticle.cs
+++ b/Scripts/UIParticle.cs
@@ -381,11 +381,13 @@ namespace Coffee.UIExtensions
                     }
                     Profiler.EndSample();
 
-                    // Editor crashes when mesh is set to null when ParticleSystem.RenderMode=Mesh
+                    // #69: Editor crashes when mesh is set to null when ParticleSystem.RenderMode=Mesh
                     if (_renderer.renderMode == ParticleSystemRenderMode.Mesh && !_renderer.mesh)
-                    {
                         return;
-                    }
+
+                    // #61: When ParticleSystem.RenderMode=None, an error occurs
+                    if (_renderer.renderMode == ParticleSystemRenderMode.None)
+                        return;
 
                     Profiler.BeginSample("Make Matrix");
                     ParticleSystem.MainModule main = m_ParticleSystem.main;
diff --git a/Scripts/UIParticleOverlayCamera.cs b/Scripts/UIParticleOverlayCamera.cs
index c5b96ed..2e70cad 100644
--- a/Scripts/UIParticleOverlayCamera.cs
+++ b/Scripts/UIParticleOverlayCamera.cs
@@ -133,6 +133,15 @@ namespace Coffee.UIExtensions
             }
         }
 
+        /// <summary>
+        /// This function is called when the MonoBehaviour will be destroyed.
+        /// </summary>
+        void OnEnable()
+        {
+            gameObject.hideFlags = HideFlags.HideAndDontSave;
+            gameObject.tag = "EditorOnly";
+		}
+
         /// <summary>
         /// This function is called when the MonoBehaviour will be destroyed.
         /// </summary>
diff --git a/package.json b/package.json
index 56b58eb..04928f7 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This plugin provide a component to render particle effect for uGUI.\nThe particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.",
-  "version": "3.0.0-preview.7",
+  "version": "3.0.0-preview.8",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {