tante33 - I'd love to get more information about the duplication issue you saw in your tree. We have a known issue with certain marriage records causing a duplicate relationship that we will be fixing ASAP, but I'm not aware of whole branches being lost or duplicate people being created any more than were created in the old way of saving records to trees. Please email me specifics so that I can follow up and make sure there isn't an unknown issue.

Thanks (jhodnett@ancestry.com)