2d widget on VR now working at all!

Hi.
Ok straight to the point! Why doesn’t 2d widget show up in VR? Am I missing something here or 3d widget is the only way to go? (I’ve checked so many VR games and not a single one used 2d widgets! - so I guess there is some sort of technical limitation not just in unreal but in the whole concept of VR??) what do you think? thanks.