Well, I'll say this about Acid 9.x - life is never dull.
I think most of the issues I have written about are fixed....but then a new one shows up.
I recorded a short MIDI track using a pretty standard VST piano. On playing it back I got bit of a shock. The first note caused the whole process to stutter and was DEAFENING. I checked the event, and the note was set to a velocity of 72 and no sudden changes were noted at any point in the meters. So I chose to just delete the event and put it back in manually to see if that would fix it.
Highlight. Delete. Hang on...there is an identical event underneath it. So I delete that. And the one under that. And the one under that. And so on. Until all 42 events were deleted.
What the shiny rubbery blazes is going on here?