The very first release of the Live Update didn't support CYVR and, even now, it doesn't support it fully because, it's a scenery that gets created at install time, depending on the options you chose when installing it ( shadows resolutions, ground resolutions, number of seasons. ) so, it's almost impossible to keep it update it with the Live Update.
But it surely won't be harmed by it, once you have the full installer running.