Are you using pitch-independent time stretch? If so, then I think this bug is a duplicate of bug #556414:
"The exact problem is that when you grab the waveform and scratch from standstill (rate=0), then all you hear is stuttering when using pitch-independent timestretch. If you grab the waveform and scratch while playing (rate != 0), then it sounds correct."
Thanks for the quick response Korin!
Are you using pitch-independent time stretch? If so, then I think this bug is a duplicate of bug #556414:
"The exact problem is that when you grab the waveform and scratch from standstill (rate=0), then all you hear is stuttering when using pitch-independent timestretch. If you grab the waveform and scratch while playing (rate != 0), then it sounds correct."
Does that sound like your problem?
Thanks again,
Albert