If you take a lot of portrait shots and need optical zoom, then the dual lens of the X is definitely a plus over the XR, but if you take more scenery shots and what not, then you'll find the Smart HDR feature of the XR to be a big plus over the X. And yes, the battery life of the X is average at best. The XR is far better, however you'll be making other compromises like a "lower res" LCD screen and no 3D Touch.
I did face this a couple of months ago as well but I uninstalled and reinstalled it and it's been working fine ever since. Just used it last week, in fact.