Hi @effenix, If you are using the non-Steam version of DCS World, you currently have to start Game Hub as an administrator as otherwise the headtracker.dll file that is located in %localappdata%\TobiiGameHub\app-2.3.1\HeadTracker.dll won’t get automatically written to the game folder Eagledynamics\DCSWorld\bin where the executable is located.
Try it out and let us know how you get on. Best Wishes.