HD Clone 9 problem with a mirrored drive

Hi,
I've successfully used HDClone 9 (free) a few times. I recently added another system/boot SSD to my system and mirrored it using Win10. HDClone now shows the two drives in the source drive list but they are both grayed out and not selectable. I could, probably, unmirror the drives to run a clone but this seems like a bug. Please advise.
Paul
I've successfully used HDClone 9 (free) a few times. I recently added another system/boot SSD to my system and mirrored it using Win10. HDClone now shows the two drives in the source drive list but they are both grayed out and not selectable. I could, probably, unmirror the drives to run a clone but this seems like a bug. Please advise.
Paul