pitch/tone automaticly changes in absynth

Hi whenever i record something with absynth the sound gets pitched up sooner or later
this happens with every sound i select sometimes after 30 sec and sometimes after 3 min...its completely random
whenever i reselect the sound it changes back to the normal pitch for a random period of time.
it looks like some sort of automation is happening within absynth (i can see the pitch wheel moving)
this problem is driving me mad and only happens in absynth all of the other NI plugins i use work fine
does anyone have a idea of how to fix this?

im using logic X

 

Did you try using the standalone-version just to check?