Seth Killian confirmed again that Capcom will be updating the console versions of Street Fighter 4 to fix some bugs that have been discovered in the arcade game. Some players are concerned about some low attacks not hitting C. Viper, and went on to claim that these are really bad bugs.The SFIV team is working on a variety of things heading up to console launch, which include bug-checking.
That said, I'm not sure this quite merits being called "insane" or "shipping something broken," right guys? I mean the collision versus animation is downright odd in, for instance, SF Alpha 3, but it's not considered "broken"--that's just the way the game is. The passthrough is odd, but SFIV wouldn't be Street Fighter without it's own quirks, and this is not exactly something that rocks the axis of the world, right?
Anyway, yes, the team is working on a bunch of things, so let's all try and keep our panties un-bunched for the moment :)
He also posted a follow up response to a reader who also agreed that while Street Fighter is known for its quirky elements that become part of the strategy — like Kara-Canceling — some low attacks completely going through Viper isn't right. Seth chimed in with the following...
Source: Capcom-Unity.com forums.