I just runned into troubles. After accepting the just published Apple update for FCP and Pro Apps my AJA ioHD crashes FCP. I can't playback a ProRes422 HQ timeline anymore (720p50) that was fine before the update. It crashes my FCP.
Whenever I set the output in FCP to NONE instad of sending it to the AJA, everything is fine. Anybody having the same troubles. IMO AJA needs to update the drivers after the Apple update...
Thanks for sharing your experience,