How do I troubleshoot `bluebuild switch`

I downloaded the blue95 installer and loved it, wanted to try the blue7 module. I ran the

just

just

build for blue7 and it ran

bluebuild switch

bluebuild switch

-- the script said it was installing the new image but when I rebooted, the old image came back up. How might I go about diagnosing why it failed?

How do I troubleshoot `bluebuild switch` - BlueBuild