This person https://www.geni.com/people/Regin-Malka-Sutton/3952529820490051953 as well as all of her siblings, have a yellow mark to indicate that they have 2 sets of parents. When I click on the small blue box with the "2" above her name, I get an option to to choose between the real set of parents and an empty-looking set of parents. No matter what I tried, I can't get rid of it. "Resolve duplicates" doesn't bring up any options to merge the unknown parents with the real ones.
Can't remove invisible parents