I had some USB stick issues with my innitial build but then swapped to a new samsung USB stick and was all ok until a few days ago.   On system reboot I'm sometimes getting similar behaviour of where sometimes the usb stick is unrecognised by either the bios or will sometimes partial boot unraid but then hang at "Unable to enumerate USB device"    Not sure if those are the same issue or 2 separate issues?   It's like it doesn't always recognise the USB stick. I have