session.default_adapter().await? throws `Error: Error { kind: NotFound, message: "" }`

[r-bt]

bluer version: 0.16.0-pre1 bluez version: 5.68

I've got the following code:

let session = bluer::Session::new().await?;
let adapter = session.default_adapter().await?;

However, around every second time that I run it it throws Error: Error { kind: NotFound, message: "" }, I've added println! statements and identified that let adapter = session.default_adapter().await? is the cause.

[surban]

Could you verify that you have a working Bluetooth adapter using bluetoothctl?

[surban]

Closing, because no further information was provided. Feel free to re-open if the issue is not solved.