How fine the resolution resolves is related to the Tempo. 120 Resolutions is finer (timewise) at Tempo 132 than at Tempo 96 .. so there can be a bunch to consider. I always prefer 960 minimum and usually 3840. It helps a TON with audio edits in RB.

As for the Reaper issue; I'm guessing when you brought in 240 Resolution MIDI, and the new Resolution is 960, if the on/off (duration) of each Event didn't change, you could have ended up with a bunch of chopped up MIDI .. which may cause some synths to behave differently than others.
Or maybe indeed you did confuse Reaper's MIDI engine .. but I'd think that would be less likely of an issue than the synth actually making the sound.


I do not work here, but the benefits are still awesome
Make your sound your own!