Music not stopped if Outout Detached

[audiocode]

Using Neutron Player for Android

When I disconnect my USB-adapter the music does not stop.
The problem with this is if the USB-adapter are disconnected by misstake the music are played from the speakers. Not great when I'm on a bus.

Under Settings > Connection and Controls I have this settings:
Play if Output Attached: all unselected
Stop if Outout Detached: Enabled (red dot)

Under Settings > Audio Hardware:
Direct USB Access: Enabled (red dot)

If I disable USB Direct Access the music stops, but I need Neutron player to have direct access to my USB-adapter (A&K USB HC3)

Bug or normal function?

[javaman]

I've noticed the opposite case: when Direct USB access is on - Neutron stops when disconnected, when direct access is off - it keeps playing.
Also, it's very annoying thing that the Android 13 asks about permission to USB DAC when connected, even with NO_DEF apk is installed.