After a short connection outage yesterday, my Motion Sensor trigger was not working. The sensor blinked, but nothing was logging on the App and the Bulb was not triggering. I went thru the normal pairing, the light would not blink red 3 times. I deleted the Sensor but could still not pair it.
Eventually I removed the Bridge and put it back in my V2. I deleted the Motion Sensor and added it back again. Then the pairing worked and my Trigger Rules recognized the Sensor was back
V2.12.3 Beta App