If you add any c++ to the project (thus generating a project file) then you’ll need to add the VRGripControllerPlugin to your projects dependancies in build.cs or it will not package. This goes for ALL plugins by the way, so you’ll want to remember it.
Yes I know, its just a lot of additional nodes to install for a HMD enumerator though, but I won’t be needing it so I guess I don’t really have an opinion on the matter anyway :p, also its full of useful functions so its not a bad thing.