2 local gedcoms: A.ged contains I3 and the parents(I1,I2) in F1. B.ged contains I1 that is the same person as I3 in A.ged. A contains a source S1 with _DBID B.ged and B contains source S1 with _DBID A.ged. In A.ged I3 I add: 1 RFN S1:I1 and in B.ged I1 I add: 1 RFN S1:I3. In gedcom B everything is correct. I see her as a child in family S1:F1 and that is correct. If I go to gedcom A I see on close relatives that I3 is child of family F1 that is correct and S1:S1:F1 which one is completely empty. In this case it is not possible to merge the two families.