Multi-Cam Playback Won't Stop!

Premiere Pro Multi-Cam playback once started by any method will not stop.  I have to kill Premiere and restart it to get back control of the software.  I saw a video on YouTube of someone with the same problem.  I think they referred to the issue as a runaway CTI.  Anyone else seen this happen?
Terry

I'm on 7.2.2.  I guess the old terminology has stuck with me.  This is relatively new behavior in my case. I don't think 7.1 did this, but since being on CC, I haven't kept track of versions as much as when I had to install the updates myself.  A few other details...  The project is one track of ProRes HQ and three tracks of AVC-HD, all 1920 x 1080i.  System is Win 7, 2X quad core Xeons, 16gb ram, SATA system drive and 3X 2tb raid 0 for video. Media Cache files on separate raid.  Quadro 4800 video card.  I could be way off base, but it just appears and though once playback in multi-cam mode is started, the software is not checking for keyboard interrupts or mouse clicks on the transport controls.
Terry

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