@Wayne-TP  Thank you for your message. The spotlight does not turn off at all anymore. I can see the time counter in that app when I try to switch it off  (the latest BETA version is super cool), but the light remains on. This could be a reason night mode never turns on automatically. When I switch manually to night mode, the light stays on even black & white infrared manner starts. I cannot also change spotlight brightness anymore, and when I try to switch off the spotlight from that setting window, the whole app on my Android hangs up ;( 

Most of my TAPO devices run in the JST time zone, and only that camera with two switches (they work perfectly) are in the CET time zone, but I hope that is not an issue.