Dear Maintainer,

When I open `blueman-manager` and try to connect to a Bluetooth speaker by
clicking *Device* and then *Connect*, I often get the error:

This will keeps happening the first few times I try connecting, but it always
connects eventually. I was expecting that when I clicked *Connect*, than
Blueman would then connect to the device (perhaps automatically retry upon
failure) instead of me having to repeatedly click on the same menu item.