Unreal 4.6.1 hangs on launch on yosemite

I’ve installed 4.6.1 on yosemite but when I launch it, it pops up a completely blank Unreal Project Browser and hangs there for well over 5 minutes. I have to do a force quit. I’ve uninstalled and cleared things out a few times to no avail.I’ve verified my installs. I’m at a loss on how to get this up and running.
link text

Hi Spoogicus,

Are you still experiencing this issue? Try opening the editor directly from the application folder. If it opens, then it’s a problem with the launcher only. If it still doesn’t open it’s a problem with the editor. Also, can you post more information on your system specs?

Thanks

One possibility is that there is a problem in a Module Manager test for a particular thread. At some point in the editor startup process, it hangs because the IsInGameThread condition is not TRUE. I made the following modification to the code and it started up fine, so I am not sure the test is actually needed on Mac OS X:

FModuleManager& FModuleManager::Get()
{
// FModuleManager is not thread-safe
bool condition = true;
condition = IsInGameThread();
// ensure(IsInGameThread());
// ensure(condition);

// NOTE: The reason we initialize to NULL here is due to an issue with static initialization of variables with
// constructors/destructors across DLL boundaries, where a function called from a statically constructed object
// calls a function in another module (such as this function) that creates a static variable.  A crash can occur
// because the static initialization of this DLL has not yet happened, and the CRT's list of static destructors
// cannot be written to because it has not yet been initialized fully.	(@todo UE4 DLL)
static FModuleManager* ModuleManager = NULL;

if(condition == true) {

if( ModuleManager == NULL )
{
	ModuleManager = new FModuleManager();
}

return *ModuleManager;
} else {
    return *ModuleManager;
}

}

Hi Spoogicus,

I have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the editor popping up a completely blank Unreal Project Browser, please respond to this message with additional information and we will offer further assistance.

Thank you.