I don’t think it has anything to do with quantize, snap or anything related to that.
Here’s what I do:
create instrument with Groove Agent One and some preset. Create any pattern of sounds - doesn’t have to be a beat - just record some notes.
I right click the track and then duplicate the entire track, using the “duplicat tracks” command. So the instrument and midi and preset chosen is an exact copy of the first track.
What happens is one of two thing, and it seems random:
- the track is duplicated and plays as it should: an exact copy so all is heard is a level raise
- the two tracks plays “out a sync”. It’s not noticeable as a delay but more as the typical “smear” when you for example do parallel processing with a plugin that doesn’t work with latency compensation. Sort of comb filtering. It’s quite nasty.