Richard, First, you will _not_ find any techical support for UFT from Genealogy.com. They stopped support 3 years ago.
The only support you will find is the users who are still watching this board and reading the UFT-L message list on RootsWeb.
There was at one time a knowledge base on this site but it has not been in service for some weeks now. Looks like it will not be back.
For your problem. Go to View > Individual List > By Record Number Key Shift-F4, this will take you to the bottom of the list and give you the last person entered. Notice the number used. Now go to one of the two persons with the same number and give one of them a number _higher_ than you found in the list.
Now you can access each person and delete the one with the high number.