Jim, I'm not on a Mac, but this might be some helpful feedback anyway...
My LHi setup seems to be working on 7.01, with AJA 10.4.0 (current windows and adobe CC version). I haven't had a chance to thoroughly test, but a 7.01 sequence plays smoothly via the program monitor, as well as LHi output. I have mine set to "follow sequence" rather than "follow control panel", and checked the box for "widescreen". Smooth and responsive with spacebar and "JKL".
I had major program monitor problems when I upgraded to CC (7.00), which was resolved with an updated nVidea driver.
Ben, thanks for your report.
I'm basing my theory on the "It's the last thing you changed" method. Since my system was working pretty well before I updated to 7.0.1, that seemed to put the suspicion on the update. And since I was experiencing no playback on multiple projects, that seemed to rule out corrupted media or projects.
There are a few users here on the forum with a setup similar to mine. So, I'm hoping to hear from them as well.
When I have some time to kill, I might go ahead and update Pr again, since I have reinstalled my AJA software, which could have gotten corrupted and caused the problem.
Are your graphics drivers up to date?
I'm on the same setup but I have a Kona3G.
The problem I have is when the timeline is playing out to my broadcast monitor, when the
video goes to a graphic solid background the monitor shows black. It should be showing
the blue background...when I go back and play again it's fine until the next solid is shown
then it's black again.
I was seeing another strangeness after updating. In an older Sequence, none of my pans and zooms on still images were playing (even after rendering) the first time through. If I stopped the playback, the image would show up. Then, it would play through the second time. I had to stop playback on all the stills in my sequence (about 40 of them), to get it to play correctly.
I'm not seeing the two problems... playing through a still (jpg) or through a clip of "mat" color is continuous via the program monitor or LHi display. (windows setup)
I believe I've solved this issue. I tried re-installing my nVidia GPU and CUDA drivers, same version I already had installed.
I then updated to 7.0.1 again, and the problem has not resurfaced.
I tried opening four projects, and they all are now playing fine.
Hats off to AJA Support, who worked this out with me. Turns out it wasn't due to their software, but It was great of them to walk me through the possible culprits.