This can be brought up by pressing a button on your remote, according to to link I’ve provided it will be: ↵ Enter or M or on remote the OK (or the equivalent button on your remote control. On my mine its list. I know your tv remote isn’t working at the moment, so can you please do the the following:
Please enable debuging logging, details can be found here, and enable component specific logging, for libcec. You find this is logging section on osmc aswell, Hopefully this will show why your sony remote is no longer being picked up.
Can you show this on the debug logs aswell?
Thanks Tom.