How do I restore a snapshot from another site? When I scan my snapshot folder using the Archive Impo

I followed the directions from this link: https://premium.wpmudev.org/forums/topic/snapshot-restore-on-new-server-to-duplicate-site-on-another-server, but my snapshot is not showing up in my "all snapshots" folder. When I am importing it, it shows me that it is being processed, but never shows that it is complete or that it is even still thinking. It just sits there! Do you have any ideas what I can do?