Just a heads up, I installed 4.22.2 and lost spacenav function, to get it back working I simply closed the launcher completely, removed the UE4-SpaceMouse.0.2 folder from plugins, Launched Unreal, closed it all down again then re-copied the UE4-SpaceMouse.0.2 folder back to plugins and then upon launch it was back working again. Just in case anyone else has had the same issue after the update. cheers.