Here is a tip: don't tap the import button, instead tap the "Load" button, it will automatically clear build area and you won't have to tap the rocket for it to appear when you launch, the import button is for loading a rocket without clearing build area, it is usefull for using parts of a another rocket in another, combining rockets, and many more things, the only thing about importing rockets is that you will have to tap in an empty space for it to load normally :D