Is the orion SDK compatible with the current UE leap motion plugin?

Hi, I have been trying to connect my leapmotion to ue for building a game project. Though I followed this tutorial, I can’t seem to get my leap motion to work:

I am currently using the Orion4.0.0+52173 SDK without a VR headset. Is a headset mandatory or should I change to an older version of the SDK?