windows 8.1 is NOT the same as WX....and they redid everything audio-wise..so really...you may have to wait till they upgrade your software to make it compatible with WX. I had a few issues with some of my music software with WX, so i went back to W7. It's far too early into WX's lifetime to expect much out of it, at least untill the service packs start coming out in a few months. It's at the point where it's fun to try, but for any practical reason, it isn't practical, yet.
Also my other main issue with WX was that my sound settings for 7.1 would never stay, it always reverted back to stereo. It still does it with W7, but not nearly as often as with WX.