I know this is an old topic, but I wish to note something.
Since re engaging Garbage Collect which does improve sound this small error has come back but only on fresh boot into Ram OS and first playback audio files. After this the error does not appear again at all, no matter how many files I play.
I'm not sure if at initial turn on computer is lagging but then catches up once OS/xx settles and the problem disappears.
Robert