I'm still trying to work out exactly what's happening here, but this is the closest I've come to having a clear view of a problem that has plagued me with Logic for a while: sometimes an arbitrary plug-in somewhere inside a project will cause roughly a 16th note or more of latency in all MIDI notes played via controller, unless low latency mode is activated. There seems to be complex interaction taking place, because if I delete enough tracks (that don't contain the offending plugin), the latency will clear up. Or, if I just remove the one problem plugin, I can have as many tracks as I want with no issue.
For example, I'm working on a project with many instances of different relatively power hungry synths and samplers (Diva, Kontakt, etc.), having no latency issues. Then I add an audio track with an instance of Waves UltraPitch and I have a 16th note of latency on all MIDI input (notes anyway, not sure about other MIDI data). This seems wrong.
Anyone have any thoughts on this?
Thanks,
-M.