Well, I knew the D6 was on purpose, just me, as a student, have not learned to play that high. G5 is the highest I've gone thus far. So it's out of my range.
Frame 08 has it as you described, but the following 3 notes also are affected. Is this intentional?
And I do other cases of it triggered on notes other than A-3 such as Frame 0B, 15, 1E, 22 etc...