I am getting this error message when using a BT device in my app, the device works as expected and no problems at all communicating with it, all functions also works as expected so I am not sure why I am getting this message.
Can I safely ignore this or is it a ticking bomb that might bite me later?
Well… it is definitely nothing that you can do about. It's not a user error, so don't worry about it. Make sure though that you handle the state CBManagerStateResetting, which may occur when the daemon handling the CoreBluetooth subsystem has had severe problems and is being restarted.