These two are less actual bugs, but demerits of two standard grab (hit-fail) move "aftermaths".
1) Karate: one of the Karate grab moves consists of a punch in the chest, followed by a footsweep that brings the loser down into an athward position (on the floor); as far as I can tell, it's identical with the according finisher.
While rising, he clearly merges into you; other moves show that such a merge can be avoided.
2) Aikido: in one of the Aikido moves, you grab your opponent's leg, twist it around and bring him to the floor, lying at the back with his feet towards you. The complex move he always uses to jump up safely brings him into a (vertical) position with his back to you. This forces him to turn around slowly, which looks quite clumsy. How about replacing it with a move that elegantly brings him up with his face to you? I know at least one such.
Two not really big deals, but it's the small things that count 