Ahh now I understand. Ogre must be talking about that infamous chord recognition problem of which I and others had much to say many moons ago. It was corrected at or about update 4 as I recall. Chord recognition was always an inaccurate description of the problem anyway. It was more of a delay as described by Ogre. I suppose a delay in recognising the chord is another way to describe it.
By the way Ogre it took a lot of complaints before Technics actually acknowledged the problem and did something about it. Initially they refused to acknowledge any problem whatsoever which led to many angry responses from customers on these forums and elsewhere.
Anyway I'm surprised that you still have a problem if you've updated the operating system.
Peter