Any DAW or plugin programmers (Noel maybe?) have any idea what is happening?

So this is not strictly Sonar related... But I am at a loss so I figured I'd see if anyone who does pro audio development has any idea. The situation:
 
I am Using Eastwest's Play 4.0.23 software. When I play back a piece that has a very fast strings bit, I get stuck notes. Only happens with Play, and seems to happen on any patch (even if I swap in something non-strings but sustained), not on other samplers. It occurs during live playback and bounce (using fast bounce), streaming off a dedicated SSD or loaded 100% in RAM. The solution? LOWER my ASIO buffer. I had it set to 50ms, 2200 samples. That's what I've always used since I don't do recording and it is the default. At 1ms, everything is fine. It plays, and bounces, perfectly. At 300ms things are WAY worse with stuck notes.
 
You can hear the tests here: 1ms  50ms  300ms.
 
Only thing I did in between the tests was unfreeze Play, change the buffer size, refreeze the track, and export.
 
So anyone have any idea:
 
1) How the heck a LOWER ASIO buffer could mean less problems?
2) Why it would affect bounce too?
3) WTF Eastwest can do to fix this?
 
It is not a real problem, I suppose, since it seems to work fine at 20ms or below and my system actually doesn't seem to glitch even down at 1ms (I don't do much that is taxing). However I would like to know what is up just because this seems totally illogical to me.
 
It doesn't happen with other synths or samplers that I've tested on the same bit, they are all happy no matter what the buffer. Also while I didn't test freezing, the same thing happened when I tested it live in a demo version of Studio One I downloaded trying to troubleshoot this. It is an issue with Play, not Sonar, I just ask here because, well, I dunno and EW hasn't said a thing.
 
Thanks to anyone with any ideas, and should you have problems with Play, mess with your ASIO buffer. Turning it down might help. Who knows?

Stuck notes, I would think, would be in issue with midi buffering, not so much audio buffering. Perhaps changing audio buffering somehow causes the application to change it's midi buffering scheme as well?
 
Who knows, just a thought.