Sorry I didn't see this until now! I've been really slammed lately. I have recently made my source code publicly available (for viewing only, not for copy or use yet), so you compare yours against it and see what might be different: https://bitbucket.org/RadiantSoftware/engine/src/master/Core/Containers/AtomicQueue.impl

Oops I should have mentioned what nIsCharacter was. It's just a boring custom type trait like std::is_integral_v. Get_TypeName() though is defined, are you referring to the class member function?