IE11 on Win7 x64, hang on F12 Developer Tools Network or Profiler tab.

IE11 on win7 sp1 x64. IE 11  version RTM or 11.0.2 (lastest)

While I open F12 Developer Tools, and switch to Network or Profiler Tab, the developer tools windows hang. It happend always but not everytime, and easy reproduce after more url visited in same browser tab.

I attached windbg to F12 process.

Here is !analyze -v -hang result, http://pastebin.com/f0RzBta9