diff --git a/iOS/APIExample/Common/ExternalVideo/AgoraMetalRender.swift b/iOS/APIExample/Common/ExternalVideo/AgoraMetalRender.swift
index 4169baeef..15e275c6a 100644
--- a/iOS/APIExample/Common/ExternalVideo/AgoraMetalRender.swift
+++ b/iOS/APIExample/Common/ExternalVideo/AgoraMetalRender.swift
@@ -83,9 +83,7 @@ extension AgoraMetalRender: AgoraVideoSinkProtocol {
         vertexBuffer = nil
         #if os(macOS) || (os(iOS) && (!arch(i386) && !arch(x86_64)))
         metalView.delegate = nil
-        textureCache = nil
         #endif
-        commandQueue = nil
         semaphore.signal()
     }