I know that the firmware was retrieved and configured with balena os configure -- device [UUID] ... command which is why is has the same UUID, a couple of times (when trying to work out what was wrong). And then on the 2nd SD card, I believe a previously downloaded and configured file was written to the new SD card. I hope that makes sense?
The reason for forcing the -device UUID is so that we can know which device should be linked back to which customer on our platform… this: Add config (file/env-var) to BalenaOS image that can be read by container before writing to SD card
Thanks for your help.