Sadly, seems you did not get help from Athom, nor from Community [APP][Pro] Wireless Weather Sensors - Reads data from several brands of wireless weather sensors - #210 by Paxman nor App developer - All sensors goes “Device Unavailable” several times a day. · Issue #149 · nlrb/com.weather-sensors · GitHub
One of the option is that you may have faulty hardware. Now I don’t recall anymore, but you tried PTP, firmware flash keeping backup etc. ? You keep opening so many channels and questions, it starts to be disturbing…
On your Theory, try to monitor your system performance, eg. via Sysinternals app, check then insights, any loop could potentially result in higher CPU load etc. but only you know your specific user config.
Also I’m not sure you ever submitted diag. log to the app developer ? I don’t see you mentioned that anywhere. The app developer then could see what exactly cause this unresponsive devices.
