SplitEQ is causing ~2 beat latency in MIDI editing in Logic (10.7.2), even with Plug-in Latency set to All, or ‘Audio and Software Instrument tracks’. Buffer is at max (1024). I reported an issue to Toontrack for Superior Drummer 3 about the lag in the Grid Editor (MIDI). After much troubleshooting, I identified that it was SplitEQ plug-ins causing the latency. Seemed to be a cumulative effect – the more SplitEQ plug-ins, the more the latency. Even bypassing the SplitEQ plug-ins didn’t work. They have to be removed altogether. Once gone, so does the MIDI lag. Sorry, Eventide. A great plug-in but unusable with this problem.