Hello,
 
I found some programs playing glitchy - could you check If you have same problem?:
Atmospheric->Analog Strings Super Ensemble    -   sound stops playing suddenly after few seconds
Atmospheric->Film Pad 1 - hold C4 (or other) and there will be stuttering every few seconds
Strings->Strings Ensamble, Vintage Strings - same as above
 
Lukasz

Atmospheric->Analog Strings Super Ensemble also cuts out on me after a few seconds, even with the sustain pedal activated.
 
As far as the others go, I don't see a problem. There is some variation in output volume, but I suspect there's some LFO something going on in those patches.
 
Patches? We don't need no stinkin' patches! 

TheMaartian
Atmospheric->Analog Strings Super Ensemble also cuts out on me after a few seconds

Pretty sure that is how the program is defined. Check out the sfz and sample files related to the program

Just a thought on the analogue strings - is it a Melotron type sound? If so, a Melotron cut of after about 8 seconds or so, is it mimicking that?

Not at my DAW, so can't check.