Sencha Animator: http://www.sencha.com/products/animator
Motion Composer: http://www.aquafadas.com/en/motioncomposer
Tumult Hype: http://tumult.com/hype
Online/Cloud Based Tools:
they are becoming popular. maybe in 2013! (:
Do you know if any of these supports audio + frame synchronization, the audio being the primary "feature" of the animation?
Is your Retina MacBook Pro the 13" model? I wonder if there's an incompatibility with the Intel HD Graphics 4000 GPU. I don't have one for testing, but in the past I've seen quite a few issues related to how Intel's integrated GPUs diverge from the traditional NVIDIA/AMD chips.
Could you look in the Console to see if there's something printed when you run the app and things go wrong? This is getting off-topic for a HN thread, so if you have a moment to look into this, please drop me an email: pauli /at/ lacquer dot fi. Thanks!