This is not something we've heard other reports of. Have you tried quitting & restarting everything (X-Plane, Oculus Home, etc)? Tried restarting the computer? There can be a lot of dependent processes to make it all work, so sometimes restarting the computer is the simplest way to get a clean start.
Do resetting to default preferences help at all? If nothing has, you can file a bug report here with a copy of the log.txt.