I have a rpi3 with libreelec 8.2.1 connected to my Samsung TV. Connected via hdmi I can no longer control it with my remote control. I have the CEC controller installed and it has worked for months. I can control libreelec with the Kore app on my phone.
I have also tested my pi3 on my Samsung TV in my bedroom and the remote works just fine up there. I am at a loss as to why it doesn't work on my TV downstairs?