Restore not happening

Hi - I've created a snapshot on, downloaded the zip, uploaded to a directory on the new server and got it showing in the snapshots panel.

When I hit restore - I get an immediate "success" message, but no restore actually happens.

I realised at that point I'd uploaded as root, so changed owner/group to www-data and permissions as open as they can get, but still no joy.

Please advise! Thx, Chris