Try to make a powercopy holes template, instantiate by document or by catalog as in the video. Try to delete the first set of holes. Catia try to delete event the second one, why? I cant find any link between them. This is so strange!
I kind of found the problem, but not the solution...
When you select the edges catia create those extractions, and reuse them for every powercopy. Isolating those feature will lead an undercostrain sketch. So found the problem but not the solution.
Ok solved...that was a classic Catia "absurdity" , you have plenty of ways of doing the same thing, but just one works... The trick is, not using classic contraint but automatic constraint, in fact if you look at the output generated by the powercopy now it has more sense. Hope this would help someone.