Well it seems that I have ANOTHER dead bridge. All of the sense device are stuck in their last position, either open or closed. And let me guess a support request will be the usual "delete / re-install - turn on / turn off - reboot my router - tap my head while rubbing my belly button . And I have done all of the above!
Wyze should include 4 or 5 spares whenever they sell a bridge - would save time.