Look, you might prefer using the Standalone for what ever reason, but for the sake of your own well-being, just switch to steam to save yourself a whole load of effort. In any case, you’ll be missing out on a lot of small balancing updates as well as bodies and turbocharging. It’s not that expensive. After the UE4 update our assortment of bodies will start anew and your headaches will begin again.
Up to you.