Disappearance of names of children

[Jeggers]

I am having a problem with the disappearence of the names and card file of added children. The blank forms are there with the color tags i put on them (died as an infant etc). It seems to happen whenever I change source person.
I am using Yosemite on iMac v 10.10.3, Reunion v.9.0

any suggestions appreciated.