Restoring a Snapshot backup

I am testing the snapshot plugin, and have installed it on a live site. I have performed a backup of all files/etc, and had it linked to my Dropbox account. The file is there, and all is good.

In order to test the 'worst case scenario', I then loaded a fresh WP install on a completely separate server and went to restore the archive. I cannot get the archive to be seen by Snapshot. I reattached the Same Dropbox /dir/, and also tried uploading the archive directly to the Snapshot /dir/ as instructed in the documentation.

After clicking the 'scan' tool, the page refreshes with no changes apparent.