Child has two fathers

I just accidently discovered a child in my tree that has two sets of parents, both father and mother in this case. To me this is a pretty obvious error, but I see no error or warning that this situation exists. How do I find these kinds of “duplicates” in my RootsMagic database?

Do an Advanced Search with the criterion of Number of Parents > greater than > 1

there are actually ways to can build groups and filter for this.

Aside of that it should always tell you in the Life Summary screen – I believe when you have more than ONE set of bio parents it report > 1.

One way to find them is advance search