.208 should not have had a problem with that code. It would have been an issue for a version way older than that (I think version below .175 or something like that). I still have .206 running on a machine with no issue. I do not use RocketLauncher so that might be something to consider. So there may be a different conflict with Rocket Launcher.
That command line allows the new Pause screen options to work. Without it the Pause screen still shows, the options just do not work (save state, load state, etc...).