No child products after migration

[Arni]

I have been struggling with this migration on a testsite that I'm working on and it's starting to take shape but when browsing the products I just realized that none of the products that should have childs actually have them.
Also, any product that had more than one image have only one now.

Is there anything I can try or is the only solution just to scrub everything and start over again and hope for the best?