Fenix 5X Plus changing into JBL Device and loosing Smartphone connection

After being connected to my Huawei P20 Pro  for a number of days my 5X Plus looses the Bluetooth connection and shows on the phone as a JBL Device.

This happend the first time after i buyed an set up an Garmin Edge 830 device.

Now, this happen every Week. the only Workaroun is to delete the Bluettoth connection and set it new up.

Is this an know Bug ?

It looks like it is the same bug as here described:

forums.garmin.com/.../1274297