That's odd, I've also noticed I've gotten the requirements for an achievement but no been awarded it such as DQ an opponent in less than 30 Frames, and be DQed in the first move. I've achieved both of those got nothing. Hitting Air is another I don't seem to have but have managed to achieve. (Yes the majority of these aren't exactly brag material). Maybe it's an overall problem with achievements? I'd like it to be explained, could somebody explain it?