mac address update problem

[keepmoving8421]

https://github.com/ts1/BLEUnlock#notes-on-mac-address
Fortunately, on Apple devices, if you are signed in with the same Apple ID as your Mac, the MAC address is resolved to the true (public) address.

What I understand is: If the computer and Bluetooth terminal are both Apple devices, the MAC address will be resolved to a fixed real (public) address
However, when I am using it, when my AppleWatch Bluetooth is disconnected, BLEUnlock cannot automatically connect to the AppleWatch and I need to manually select it in the list. What is the reason and how to solve it？
thanks!

[ts1]

I don't really understand how it works, but sometimes if you try to connect your device and Mac in System Preference > Bluetooth, it would resolve public address.