Saphirros

Hello, hope someone can help me. I have a Pokemon X file and when i extract it i get the extraction complete but it says no game loaded. It really pisses me of. At first I was able to do it, but after a few times it stopped working. I tried redownloading the rom and pk3ds (and different version) still same issue. When it was working, the 3ds rebuild option was greyed out. If you have a solution for this issue too please tell me please.