I have a question about using a USB Stick, If I use the Go Control app on my phone the contents of the drive don’t show up and my phone disconnects from the BP 50. If I use the remote it also doesn’t play the sick. It has been Formatted with Fat32 and is 64 Gb, it has different file formats but all are supported. If the stick is still in the USB port my phone will not connect to BT unless the stick is removed first. If I use the remote, the unit won’t stay on when USB is chosen on the remote, the unit goes to stand by mode. What am I doing wrong?