In the past two days [240925], the Apple Watch suddenly lost contact. Has anyone encountered a similar situation?

1. Shortcuts turns on Workout exercise from the mobile phone, and the watch will not run the corresponding items, such as outdoor cycling. 2. BLE Unlock, the watch can be recognized when the wrist is raised, but the Bluetooth device cannot be found when the screen constant is turned off. It happened the day before yesterday, before the beta upgrade yesterday. It happened suddenly. There is no sign. Do you have any ideas to solve it?