diff --git a/src/Api/PubnubApi/EventEngine/Subscribe/Effects/EmitMessagesHandler.cs b/src/Api/PubnubApi/EventEngine/Subscribe/Effects/EmitMessagesHandler.cs
index 38a821089..02fa245fa 100644
--- a/src/Api/PubnubApi/EventEngine/Subscribe/Effects/EmitMessagesHandler.cs
+++ b/src/Api/PubnubApi/EventEngine/Subscribe/Effects/EmitMessagesHandler.cs
@@ -79,9 +79,7 @@ private object DeserializePayload(string key, object rawMessage)
 
         public override bool IsBackground(EmitMessagesInvocation invocation) => false;
 
-        public override Task Cancel()
-        {
-            throw new NotImplementedException();
-        }
+        public override Task Cancel() => Task.CompletedTask;
+        
     }
 }
\ No newline at end of file
diff --git a/src/UnitTests/PubnubApi.Tests/WhenSubscribedToWildcardChannel.cs b/src/UnitTests/PubnubApi.Tests/WhenSubscribedToWildcardChannel.cs
index 49d5915f6..679308cf8 100644
--- a/src/UnitTests/PubnubApi.Tests/WhenSubscribedToWildcardChannel.cs
+++ b/src/UnitTests/PubnubApi.Tests/WhenSubscribedToWildcardChannel.cs
@@ -1094,7 +1094,7 @@ public static void ThenSubscribeShouldReturnWildCardPresenceEventInWildcardPrese
             bool receivedMessage = false;
             bool receivedErrorMessage = true;
 
-            PNConfiguration config = new PNConfiguration(new UserId("mytestuuid"))
+            PNConfiguration config = new PNConfiguration(new UserId($"user{new Random().Next(10,100)}"))
             {
                 PublishKey = PubnubCommon.PublishKey,
                 SubscribeKey = PubnubCommon.SubscribeKey,