I dusted off my remote for my first use with V3. Tried it on 2 machines with the Blaster and there is no XL response to button pushes. The blaster acknowledges bursts and I can see the plugin respond in Learn mode.
From the main xLobby menu hit "O" this should bring you to the options menu. The default PW is 1234. We now use several remote control profiles. Under USB-UIRT, Enable the the remote that is revision 1. This should fix your issue.