Minecraft freezes up on me when I try to start streaming - 'Issue Streaming Frame - TTV_WRN_FRAMES_QUEUEING'

Minecraft freezes up when I try to start streaming by pressing F6. I have been streaming via this feature ever since 1.7.4 came out so it's troubling to see it freezing (not crashing, but freezing up to where I have to end the process) when I just want to livestream my map creation. It says 'Issue Streaming Frame - TTV_WRN_FRAMES_QUEUEING'