This literally starting happening to me. I just bought my octatrack less than a month ago and just bought a new computer. When I plug the elektron usb / I am using a CF and it’s formatted / with the elektron USB Midi / Updated & going into USB Disk Mode / it won’t show up as a device and sometimes it’ll show RARELY and then it’ll just eject by itself. Have no idea what’s going on but I’m pissed.