NVMe dropped offline:
Sep 1 22:15:36 Tower kernel: nvme nvme0: I/O 92 QID 1 timeout, aborting
Sep 1 22:15:36 Tower kernel: nvme nvme0: I/O 224 QID 2 timeout, aborting
Sep 1 22:15:36 Tower kernel: nvme nvme0: I/O 116 QID 3 timeout, aborting
Sep 1 22:15:36 Tower kernel: nvme nvme0: I/O 90 QID 6 timeout, aborting
Sep 1 22:16:06 Tower kernel: nvme nvme0: I/O 92 QID 1 timeout, reset controller
Sep 1 22:16:37 Tower kernel: nvme nvme0: I/O 1 QID 0 timeout, reset controller
Sep 1 22:17:39 Tower kernel: nvme nvme0: Device not ready; aborting reset
Some reports that the newer kernel on the latest Unraid beta helps with this on Ryzen boards.