I just switched to the app, which I forgot I had. Maybe it’s a battery issue but that seemed to be ok. The TV turning on by itself, several times, freaked out my wife. :)
Related: My six-year-old Harmony Hub seems to have bricked, after turning my TV on and off by itself several times. I’ve tried all the troubleshooting tips and nada; the Home Screen is frozen. Is I that it? Do I get a new one given the lack of support or try some other device?