diff --git a/packages/core/src/framebuffer/FramebufferSystem.js b/packages/core/src/framebuffer/FramebufferSystem.js
index dcd36a6..acd0505 100644
--- a/packages/core/src/framebuffer/FramebufferSystem.js
+++ b/packages/core/src/framebuffer/FramebufferSystem.js
@@ -421,7 +421,7 @@
 
         this.managedFramebuffers = [];
 
-        for (let i = 0; i < list.count; i++)
+        for (let i = 0; i < list.length; i++)
         {
             this.disposeFramebuffer(list[i], contextLost);
         }

diff --git a/packages/core/src/framebuffer/FramebufferSystem.js b/packages/core/src/framebuffer/FramebufferSystem.js
index dcd36a6..acd0505 100644
--- a/packages/core/src/framebuffer/FramebufferSystem.js
+++ b/packages/core/src/framebuffer/FramebufferSystem.js
@@ -421,7 +421,7 @@
 
         this.managedFramebuffers = [];
 
-        for (let i = 0; i < list.count; i++)
+        for (let i = 0; i < list.length; i++)
         {
             this.disposeFramebuffer(list[i], contextLost);
         }
diff --git a/packages/core/src/renderTexture/BaseRenderTexture.js b/packages/core/src/renderTexture/BaseRenderTexture.js
index dc0248f..17666f9 100644
--- a/packages/core/src/renderTexture/BaseRenderTexture.js
+++ b/packages/core/src/renderTexture/BaseRenderTexture.js
@@ -142,7 +142,5 @@
         super.destroy(true);
 
         this.framebuffer = null;
-
-        this.renderer = null;
     }
 }