This appears to only be happening on Retina MacBook Pros.
If you have this issue, you will need to turn off "automatic graphics switching" under energy saver settings.
When you disable automatic graphic switching, it will use ONLY the Nvidia GeForce 650 and not the Intel HD 4000. Having AGS switched on will result in your MacBook Pro switching to the Intel HD 4000 causing the issue you are describing.
If you still have issues please create a support ticket with us: