I’m having similar problems. Took me a while to figure out what caused it. I even reset my AVR and TV to factory settings. My setup has been working flawlessly for a long time. I’m not using my Vero 4K+ regularly at the moment, so I had been on 2022.03 until a bit over a week ago when I updated to the latest version. This post from the other thread quite accurately describes the problems I have had too: HDMI-CEC seems to stop working after a couple of hours - #18 by rodhull.
My Vero 4K+ is connected to a Marantz NR1711AVR (along with some other HDMI devices), and the AVR connected to a Sony X85J TV. I have enabled debug logging, let’s see if I can provide anything that helps.