"RenderBus something has gone wrong!"

[zgiles]

Was running memoryio in debug mode via xcode for ~1day, then it failed to take a picture saying "something was wrong with taking that shot" or whatever it says.

Log showed (repeatedly) for about 100 times (the number in the loop):

Tue Dec 24 14:39:28 2013 CMIO_Unit_Output_Base.cpp:201:RenderBus theInput = 0x6000000f9e00, mPullInputOnNextRound = 0x0, mInputHasSeenEndOfData = 0x0
Tue Dec 24 14:39:28 2013 CMIO_Unit_Output_Base.cpp:197:RenderBus something has gone wrong!
Tue Dec 24 14:39:28 2013 CMIO_Unit_Output_Base.cpp:199:RenderBus idx = 0, mNumInputs = 1, mNumInputsAllocatedFor = 0
Tue Dec 24 14:39:28 2013 CMIO_Unit_Output_Base.cpp:201:RenderBus theInput = 0x6000000f9e00, mPullInputOnNextRound = 0x0, mInputHasSeenEndOfData = 0x0
Tue Dec 24 14:39:28 2013 CMIO_Unit_Output_Base.cpp:197:RenderBus something has gone wrong!
....
2013-12-24 14:39:28.037 memoryio[29992:b06b] Stopped.
2013-12-24 14:39:28.037 memoryio[29992:b06b] rawImage == nil

I googled "RenderBus something has gone wrong!", it shows:
https://code.google.com/p/webrtc/issues/detail?id=1456
and
https://webrtc-codereview.appspot.com/1880004

May be a possible lead to why it sometimes fails to take the shot...