This message is now appearing in iOS 12 when using an audio interface attached to the Lightning to USB adapter. While music plays, there are no issues. However, when I need to pause (using the controls on the lock screen) I can’t resume playback again without unlocking. There have been no disconnects or anything new connected to the port - it’s the same device as seconds earlier, yet the iPhone X can’t recognize this? This worked fine in iOS 11.
Of course I want the protection from random USB devices to kick in when I disconnect the currently attached device, but not while using it. I have not found any settings to control this behaviour either. Also not keen on extending the auto-lock timeout too much.
Is this a bug or a feature?