I'm using Scout CC for Stage3D Recording and all my recordings crash Scout CC.
Here's a link to my flm file where the crash is reproduceable. Open the flm, go to frame 107, and switch to the Stage3D Rendering tab. Crash.
I'm on Win7 x64.
I confirmed that this also crashes Scout CC on a Mac using a colleague's computer. He can load frame 107 and open the Stage3D Rendering tab, but if he clicks far enough down the list of gpu operations it will crash.
Thanks for reporting this! I can reproduce that the crash does indeed happen in the latest version of Scout.
I've filed a bug report, so it can get on the backlog of things to fix.