diff --git a/Source/Integration/LockedWrapper.h b/Source/Integration/LockedWrapper.h
index 69e24970..ec227432 100644
--- a/Source/Integration/LockedWrapper.h
+++ b/Source/Integration/LockedWrapper.h
@@ -40,9 +40,9 @@ private:
 	FCriticalSection Mutex;
 	EngineWrapper Wrapper;
 
-	// The Lua Call Assembly Buffer. Used to build up
-	// a call across multiple UFUNCTION invocations.
-	// Only accessed from the game thread.
+	// The Lua Call Assembly Buffer. Used to build up a call
+	// across multiple UFUNCTION invocations.  This is not protected
+	// by the mutex, so it should only be used by the game thread.
 	//
 	FlxStreamBuffer LuaCallBuffer;
 
diff --git a/Source/Integration/LuaCall.h b/Source/Integration/LuaCall.h
index f5127f55..01b7a852 100644
--- a/Source/Integration/LuaCall.h
+++ b/Source/Integration/LuaCall.h
@@ -18,7 +18,7 @@
 #include "EdGraph/EdGraphPin.h"
 #include <string_view>
 #include <string>
-
+#include "Kismet/BlueprintFunctionLibrary.h"
 #include "LuaCall.generated.h"
 
 class UlxLuaValues;
@@ -116,7 +116,7 @@ public:
 ////////////////////////////////////////////////////////////
 
 UCLASS()
-class INTEGRATION_API UlxLuaCallLibrary : public UObject
+class INTEGRATION_API UlxLuaCallLibrary : public UBlueprintFunctionLibrary
 {
 	GENERATED_BODY()
 
diff --git a/Source/Integration/LuprexGameModeBase.cpp b/Source/Integration/LuprexGameModeBase.cpp
index d606bc45..e6f0d82c 100644
--- a/Source/Integration/LuprexGameModeBase.cpp
+++ b/Source/Integration/LuprexGameModeBase.cpp
@@ -62,7 +62,6 @@ void ALuprexGameModeBase::ResetToInitialState()
 	
 	// Reset the clocks.
 	EngineSeconds = 0.0;
-	NextRotateCube = 1.0;
 }
 
 void ALuprexGameModeBase::UpdateConsoleOutput() {
diff --git a/Source/Integration/LuprexGameModeBase.h b/Source/Integration/LuprexGameModeBase.h
index cefeb808..37976d57 100644
--- a/Source/Integration/LuprexGameModeBase.h
+++ b/Source/Integration/LuprexGameModeBase.h
@@ -119,9 +119,6 @@ public:
 	// Amount of elapsed time since BeginPlay.
 	float EngineSeconds = 0.0f;
 
-	// When do we next rotate the cube.
-	float NextRotateCube = 1.0f;
-
 	// This allows us to post-tick.
 	FDelegateHandle OnWorldPostActorTickHandle;