New Post: Debugging hangs if an event handler for a UI element is set and event handler gets executed (V8)

Yes, but unfortunately, as you can see, the native symbols are missing. Did you build ClearScript yourself? If so, you should be able to load the symbols (.PDBs) for the ClearScriptV8-32 and v8-ia32 assemblies into the debugger to get a stack with the relevant symbols. In the meantime we'll see if we can reproduce this with Eclipse.