I record two bars of music, go to the quantize menu and select "Groove named: 16th triplet". What I end up with then is a bunch of notes played on beat 1 of the first bar (all together) and a bunch of notes all played on beat 1 of the third bar (which wasn't even there before).
Is this a bug? When I quantize using 16th notes (so no 'groove named'), there is no problem.
Problem occurs on both midi and virtual instrument tracks. I'm on a G5, using 10.5.8.