I was having trouble getting my Taranis QX7 to be recognized or even show up in Liftoff after the new update 12.9. There is another fix that I was using but I couldn’t join any multiplayer lobbies because I was running the “legacy input” beta. I’ve finally fixed the issue after hours and hours of updates and controller firmware updates and setting changes and On and on and on.....so i hope this saves you the time and Hassle I had. I hope this helps out. Like this video if it did. Thanks! Safe Travels