Stream Unreal Scenes to an iPad using Cloud XR

Hi,

we finally got to testing CloudXR also with Streaming to an iPad and were pretty happy that for VRED it works out of the box, turn off the background in VRED and it is perfectly blended into the scene with ARkit. However creating a scene in Unreal, so far when we basically just use the default VR templates, nothing is shown on the iPad. Everything looks normal on the server, but on the iPad the whole scene is invisible. Has anybody gotten more success with using Unreal Scenes to stream to an iPad?