Okay, I found the pattern still for sale here:
https://quiltswithatwist.com/products/zebra
It looks like these people are the designers of that pattern because if you look at all of their patterns, there are several others with this same layout. There is both an email and telephone number on that website. It may be worthwhile for your daughter to email the shop about her difficulties, perhaps with some attached photos of the pieces that are left. They should be able to help her figure out what to do. (I still think some piece must have been cut backwards or mirror-imaged, but that is just my guess.)