LG pushed a firmware update to there UM7300 series TVs about 2 weeks ago. I saw it install and then it said it was updating the firmware on the Magic remote (their remote).
Note this is with the X15 remote specific TV is LG 55UM7300
After that, I could not turn the TV off, perform volume control or change inputs on the TV all of which worked fine with the first code on the X1 list for LG remotes before. I don't recall that number as I'm not at home at the time of writing. I've gone through all of the LG codes multiple times and have not found one that will do anything except turn on the tv at this point.
I'm wondering if anyone else is seeing this issue and if they have found a workaround. Or if Xfinity was notified of the new remote encoding by LG and were working on a new firmware for the X1 box/remote to push out.. Thanks