I just updated my Avast Premium Security to the latest version 20.1 and now the Network Profile option in Protection->Firewall settings is stuck on Public. The arrow tab will not slide over to the left. I had the same issue with the previous software, where the arrow slider would immediately revert back to Public network continuously. Now the arrow remains locked in Public setting. I was hoping this latest release fixed this glitch but apparently in my case it has not.