Midi note won't play on playback, but plays in piano roll

[Kendomixes]

This is a new one for me - I have a note (drums) in piano roll. It's a cymbal hit. I click it in the piano roll and and I can hear it fine - I see it hitting in my instrument UI as well. I hit that same cymbal in the instrument and I can hear it. Everything sounds good. But the note on my piano roll doesn't play back when I'm playing in real time. I cranked the velocity up and of course clicking in piano roll reflects the velocity anyways. It's happening with two different instruments - EZ Drummer and Superior Drummer.

Any ideas what could be causing it not to play back? All the mixing and routing is fine considering I can hear it when I click it.
Thanks in advance.

 

[Kendomixes]

A new clue to the problem. If I start playback right where that note is, the cymbal plays. but if I start it before that note, it won't play.

 

[Lukas]

What's your Dropout Protection setting? If it's set to a higher value (like High or Maximum), does it make a different if you set it to a lower value or turn it off completely?

And you're referring to Studio One 6.6, correct?

 

[Kendomixes]

Yes - 6.6. I sort of solved the issue by removing part automation in the midi event. Unfortunately that removed all my hihat articulations which reduced some of the natural feel of the song. I had previously looked at the CC4 and nothing seemed out of place and not sure why CC4 would impact cymbal hits. I was wondering if there was some other automations that I couldn't see that may have effected. I'd like to know how to solve with out killing all the CC4 envelope.

When you say drop out protection, are you referring to the audio device settings? I don't think I have any issue there - this is definitely something specific to the midi event.

 

[Number6]

I was going to suggest dragging the start of the event on the track to the right and make that event smaller, then drag it back. Do something similar to the end of the event.

Often that sorts things out for me like a note not playing or a note playing that I can't see, suddenly another note may appear from nowhere or something else. I have no idea what's going on when it happens, but that method seems to refresh or rerender something.