So the day before yesterday, I was screwing around in KOFXIII training mode (arcade version). And I found a very odd, and pretty bad bug.
So I made a video illustrating this bug.
www.youtube.com/watch?v=ksY0JwFM77sBasically whenever Iori tries to crouch block the second hitbox of certain attacks (mostly uppercut like moves, like close C and crouch C), he can't. He can standing block them, this essentially makes them extremely fast overheads.
For most chars, it isn't a big deal, they do one heavy attack hit, which hurts but won't kill you. Most characters cannot cancel the second hitbox of these attack (not even BC cancel). But three characters are especially scary.
If Kyo hits with the second hitbox of his cl.C, he can link into his EX DM and do a LOT of damage of this overhead.
Maxima's second hit of his close C is also overhead on Iori. Maxima can cancel this close C, so potentially he can also HD cancel and potentially do a full HD combo.
Robert can use his f+A which can cancel into f+B to hitconfirm and go into a hitconfirmed overhead HD cancel.
What I mean by second hitbox of a close C is the following.
Close C of Kyo has two active periods, one where his arm is close to his body, a second period where it's sticking upwards.

First hitbox.

Second hitbox.
It's that second hitbox that hits overhead for some reason. It seems to have something to do with the fact that these moves force stand.
What I really want to know is: Is this gone on console?
Kane317 tested it with Shen, other people tested the kyo and maxima one. The second hitboxes seem to whiff on crouching Iori. (which is weird... in cause of kyo cl.C, it has never been like that in previous KOF's)
I'd like to see eventually all of these case being tested. So that's where you lucky ones who got the game early come in. ;-)