nope, checkpoint and sd. i always used this method and always worked, i think btw that it's the second time it shows me this, the first one there was a problem with a berry (don't ask me which one, i can't remember), now i think the same thing happened, there was a porygon z with spec scarf and a sharpedo w speed scarf or anything it's called in english. however, there is something we can do for my save or i just have to re create those two boxes of mons?