I think I figured out one of the problems that I had asked you about.
There isn't an "X" in the Preferred Column, BUT the word Preferred.
If you have multiple Birth FACTs, for example, you need to Mark ONE of them as Preferred. Or, more accurately, the Program assigns one BUT the user can change that.
In This specific Case, what I think you will see. in the Relationship Button, the Two Spouses, one Ongoing, the other Unknown, with the word Preferred, and this is a guess, on the Same line with the Unknown entry.