I tried to see if I could move my 1TB Samsung NVME SSD from an unassigned device to cache seamlessly. It was formatted as LUKS-encrypted BTRFS (single partition). When it turned out to be unmountable, I immediately stopped the array. I did NOT hit format, so I didn't think any changes would be made. However, this device is now unmountable (with no filesystem being shown). Is there any way I can recover my data?   I have all my critical data on this device (all my VM drives) and was foo