Bluetooth adapter works but does not discover devices

I bought the supported ZEXMTE Long range Blutooth Adapter. When I type bluetoothctl devices in the command window, I successfully find a whole lot of devices.
But in the Integrations-Tab, Home Assistant does not show any devices.?!
I want to use it as an additional bluetooth tracker for my smartphone and smartwatch. Can someone give me a hint?


Pi4 running Home Assistant OS
Zexmte Bluetooth Adapter