This looks simillar to my issue , but in my case, on NSPanel PRO 120, after about 2 days of running Home Assistant app with a simple dashboard, the NSPanel background services are fronzen (not responding), while the Home Assistant app still works , but all NSPanel functions like proximity sensor, and other background apps are stucked. When i press the accesibillity button to exit home assistant and to go back to nspanel native dashbord, it partially reboot itself and reloads the nspanel dashboard and services. See my video here: NSPanel Pro frv.: 4.5.0 feedback - #25 by Derex
@Milk gave me a 4.8.1 firmware to try , but the issue has not been fixed, it’s the same.
Just to mention, I am also running same Home Assistnant dashboard on the NSPanel PRO Gen2, without absolutely any issue. It runs quite very good on the new panel.