U can do that on a new save from all i know casue this has been a issue since 1.1.46 it also happens on any BP having ether of the 2 bulk un/loader being added with the "Create new content" button.
You need to remove the blueprint from the blueprint book so the raw blueprint is in your inventory to work around the Factorio bug. IMO it's best to pretend the "Select new contents for blueprint" button doesn't exist. It has never worked properly for complex modded entities.
I was able to load the save without those 3 mods and verified the problem is because the blueprints are inside blueprint books. I filed this new bug, but Wube says they can't fix it anytime soon: https://forums.factorio.com/viewtopic.php?f=182&t=101619
F that shit i have sed i haven't made the BP in a book at all. since i start using a normal BP but no Issuhe then oinly when selcting new content for a already made BP. The thing is "ctrl" + "c" is not exacly inside a book. Or is it ?
When you click the “Select new contents” button, if the blueprint is not inside a book or the blueprint library, it will work. You can take the blueprint out of the book, update it, and then put it back into a book. It doesn’t matter where or how the blueprint was originally created.
