Keep in mind, Korg by default numbers their CC values strangely by default and I had to edit them so there was no CC0 and no CC32 being sent. In order to do this, you have to have the Korg drivers and software installed.
I can confrim on Win 10 that unplugging the Nano2 will cause GP to show the device as disconnected but repatching it will not auto-connect it. This is ether because it’s connecting to a different USB buss address, despite being patched to the same port, or the Korg driver goes idle until reboot.