Tracks disappeared after upgrade

Hi. I’ve just upgraded from ardour3 or 4, to ardour 5 (I had to, as I upgraded from ubuntu 16.04-18.04, and this was the only ardour package the new distro carried).

Anyway, as the title implies, vast tracks have just disappeared from the project I’m working on. I did have guitar, tin whistle, mandolin and fiddle. Now it’s just guitar!

Any help would be appreciated. I don’t want to have to bring these guys back into my studio to record again, that would be really embarrassing. If there’s a fix anybody knows of, that’d be ideal. Alternatively, if there’s anywhere I can get hold of earlier versions of ardour, that would work too! (I have a backup of the original files).

Thanks in advance,

Forget it. Delete this thread, somebody.

Turned out I restored the Ardour directory from the wrong backup.

Mistakes happen to the best of us. +1 for actually making backups!