I found a bug in the family tree of the della Gherardesca of Pisa as almost all of the family members are disconnected on the familytree and they are all stacked under one another on the left.
I checked vanilla and the family tree is connected there, so you might want to check that out.
Edit
I found the problem. You need to add the correct father and dynasty (13031) to some members in the jfl78_italian_sardinian.txt. They can be found under the heading Giudice of Gallura. A few of them have a father=0 and dynasty=0 entry and these need to be corrected.
I checked vanilla and the family tree is connected there, so you might want to check that out.
Edit
I found the problem. You need to add the correct father and dynasty (13031) to some members in the jfl78_italian_sardinian.txt. They can be found under the heading Giudice of Gallura. A few of them have a father=0 and dynasty=0 entry and these need to be corrected.
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