Norton blocking treats from windows 8 app and games.

Recently i just upgraded to norton internet security 22.5.2.15. Everything worked fine but when i tried to go on to a game that i downloaded from the windows store Norton gives me messages that multiple things have been detected and fixed, things like unityengineproxy.ni.dll and winrtlegacy.ni.dll. It also says that the threats "name" is WS.Reputation.1 The game works fine but i would just like to know why this happened.