firstly I am new to using Family Historian and I have chosen it simply because of good reviews, it is a completely new install on my laptop which is running Win 8.
In Ancestry I created a Gedcom for my own family tree and imported it into FH and there are no problems and the full family tree displays OK.
Then with my Wife’s family tree I created a Gedcom file in exactly the same manner.
Both files are similar in size.
Then in FH when I import the Gedcom for my Wife’s tree all I see is my Wife’s entry and no tree at all.
I didn’t find the right solution from the Internet.