Glitch in Generations Display? - Family Tree Maker software - Family ...

I was adding additional info in FTM three generations back on my maternal branch. Everything looked fine when I highlighted the male side of the third generation branch.
I realized I needed to add info to his wife. I clicked on his wife and her branch changed to her husband's branch! His father was displayed as both his father and his wife's father!
When I clicked back on him...his wife's branch was redrawn correctly.
I have checked for duplicate names etc...but nothing was shown as duplicate.

Any idea why FTM would switch the branches as I clicked back and forth?

Source: http://boards.ancestry.co.uk/topics.software.famtreemaker/9262/mb.ashx

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