Just a quick update:
The only way I could clear up the context issue was with a reinstall. Which means I’ll have to call in to reset the key, but a small price to pay. It at least got me back to where I started this morning!
Had the same problem with last Friday’s autobackup, but Thursday’s looks to be okay and I have my tags back. I’d say we can close the support ticket. Do you still want the two backups to compare?