Often the left eye will stall or show a random glitch, while the right eye plays. It doesn't look to be OS X version, Unity version, or OVR version specific since it has been occurring since the DK2 OVR release.
Would it be possible to share the model and specs of your Macbook?
Below is the setup we see it on: MacBook Pro, 15-inch, Early 2011 Processor 2.3 GHz Intel Core i7 Memory 8 GB 1333 MHz DDR3 Graphics AMD Radeon HD 6750M 1024 MB Software OS X 10.9.5 (13F34)
Cubicle Ninjas Custom VR App Development Guided Meditation VR for Rift, Gear, and Go
ktw, are you still seeing this? It would be good to get details on your system specs as well as any console output. Does the Oculus Configuration Utility's demo scene render properly for you? Does the issue occur in standalone builds too?