I had the same problem though I was playing music with Radiant Player. However, I switched my sound output from HDMI (a Vizio TV) to my MBP speakers and it went

I had the same problem though I was playing music with Radiant Player. However, I switched my sound output from HDMI (a Vizio TV) to my MBP speakers and it went away. I'll also submit the above as a comment on the bug report.