ADT ST door and window detector loss of supervision

I have one door and window detector for my ADT SmartThings setup that keeps showing up as “loss of supervision” and when online, shows open when closed…

What can I do troubleshooting wise for this?

Same problem here. Opening and closing the door resets the sensor, but the fault recurs from time to time. I’d love to know of a fix.

I have the same problem buty with an ADT/ST motion sensor “Loss of Supervision” was detected by the panel with a beep every minute …