I've installed the latest beta to get the hololens remoting preview. I've tried installing several times, and reinstalling Visual Studio components etc but when I try to load an existing hololens project I get errors claiming UnityEngine.VR.WSA.SpatialMappingRenderer is missing. The same project opens fine and builds on the 5.4.0f3-HTP build on the same machine. I've even tried uninstalling that build and reinstalling everything with 5.5 beta, but no matter what I do I can't get it to build. I've confirmed that the relevant sdk and support options are ticked in the player settings, and everything else is fine and just as it works in the 5.4 hololens specific build, but I can't get 5.5 to work. Has this library moved, or is something else wrong?