Correcting a daughter who is shown as belonging to her mother and her stepmother.
My ancestor married twice and a daughter by his second marriage has been incorrectly shown as a daughter of both marriages. So she appears twice in the tree. I have followed the instructions about modifying family relationships but with no success. Deleting the daughter from the first marriage brings up an error message saying that I cannot complete the action as the second marriage already exists.
Any suggestions please?