CVPixelBufferGetWidthOfPlane Bad Access

[persian-thunder]

Hi all,

I'm working on the dev branch of ofxARKit, and after about a minute of usage, I'm getting a EXC_BAD_ACCESS breakpoint for the
const size_t width = CVPixelBufferGetWidthOfPlane(pixelBuffer, planeIndex);

line of code in ofApp.mm. I have. a feeling this is ARC related. I have to turn of automatic reference counting to get the examples working after the recently pushed fix, but I'm unsure as to how to resolve this.

Any ideas?