PPro CC 2014.2 on OSX 10.9.5 - Crashing

Question

Is anyone else with the latest PPro CC 2014.2 update on OSX 10.9.5 and experiencing a significant amount of crashing?  I only updated in hopes it would resolve some of the other issues that were bugging me from the previous release.
Some of the problems include:
- Random video freezes while playing a timeline.
- Random issues with the space bar not playing the timeline, or clicking the Program Monitor's play button.  One instance had the video freeze and no way of stopping audio playback.
- Non-responsive Program Monitor, regardless of resolution.
- Issues quitting PPro itself with a long hang and "Application Not Responding" after several minutes that require a Force Quit in order to fully close.  This likely is tied into the crashing aspect as I have not had this problem when opening the program, doing a minimal amount of work, and then quitting.
This appears to be GPU related and shows some of the symptoms of a memory leak, similar to how AE CC2014 was responding during audio scrubbing previously.  Immediately after restarting, PPro is fine.  After several minutes of usage, that's when issues occur.
Having PPro open with AE and/or PS at the same time makes the frequency increase quite a bit, but I cannot 100% replicate the issue every single time.  I've forced render timelines so (theoretically) there should be no real taxing effort on the GPU, but even when the entire timeline is "GREEN" the issues are not going away.
Eliminating all effects, filters, etc is not a viable option or solution.  I am working on finishing a timeline and that involves using effects.  All effects have been updated and are the latest versions available.
These issues happen both after quit and after a hard restart (full shut down and power on).  System is a MacPro "Mid-2012" with GTX 680 (official version) running OSX 10.9.5.  Have switched the NVIDIA driver from the NVIDIA version to the OSX version (via the NVIDIA Driver Manager Preferences) and the same problems persist regardless of the driver choice.
I've been holding off on the 10.10.X update, but at this point may have to give that a shot when I finish this current project.

Answer 1

I have submitted at least 4 crash reports when they have come up and resulted in the prompt to submit them.  I do not have hard copies of them accessible currently.  I know that two of them resulted in PPro being unable to save the current state of the project and at least the other two were "recoverable" after the prompt that an error was encountered and the project would be saved.  A bug report has also been submitted.
This is extremely reminiscent of the AE CC2014 behavior that seemed to "build" to a GPU-related memory leak crash after scrubbing audio.  With that memory leak the system started to feel sluggish, performance dwindled, then the software would either crash or lockup - sometimes with a crash prompt, other times completely unrecoverable.  That's the same behavior that I'm experiencing with PPro CC 2014.2 currently.
At this time I have not switched the render to software only, though that will be the next step.  A few effects/plugins are GPU accelerated and I really don't want to lose performance.  I also have not rebuilt the project, exported XMLs and re-imported, or any of the other typical workaround solutions.  I am just trying to get a project finished and meet a deadline - those methods more often than not require rebuilding a lot of the finishing parts of a project.