I wish they would figure this out and do a hot fix. It’s really affecting my workflow, having to quit and restart several times a day. I’ve also noticed that my Steinberg FW driver fails to load about 25% of the time, forcing me into “AirPlay” as the VST connection. Never had these problems before Mavericks / Nuendo 6. I’d say Apple changed something and didn’t document it well enough for the programmers.