I just vaguely remember having read something along those lines on ikari's blog a while ago, so take this information with a grain of salt.
Maybe, I was just mismemorizing something, would definitely ask ikari about that himself to be entirely sure.
Iirc, 1chip models were affected.
There were alsi issues related to Super Ghost'n Ghouls and Super Street Fighter II, though I believe these were also related to in-game hook shenanigans.
As I said, asking ikari or someone more well-versed than me is recommended.
Regardless, I'm happy to be able to help.
Have a nice day then.
