Embassy Setup Error on Raspi using NVMe drive

Flashed the latest embassyos_raspberrypi.tar.gz to my NVMe drive. I reboot and get the Embassy Setup screen, select my drive, enter password and get this:

Error

RPC ERROR: Disk Management Error Can’t open /dev/nvme0n1 exclusively. Mounted filesystem? Can’t open /dev/nvme0n1 exclusively. Mounted filesystem? Restart Embassy to try again.

Anyone else see this issue?

Rather flushing, the NVMe drive try to flash the SD card or USB pen drive and boot the image from it, then install to NVMe drive.
Good luck.

Much appreciated!

Using a raspi cm4 made things a little more complicated. I flashed the onboard emmc, booted up and installed to the NVMe drive.