RealityKit + Xcode = Bad paramater (SphereRadius) Error??

Right,

So I been playing with RealityKit and Reality composer on my mac pro. In general what I want to achvie is a scene that can respond to the tap interactions, but I want to build it as an app rather than access it via Reality Composer App.

So I setup my ar project, I build bunch of tap based flows with behaviours like hide/unhide etc. I have imported the rcproejct to xcode and called each scene with

Code Block 
let PlaneAnchor = try! ExperienceRcproject203847722.loadSceneName()

followed with  

Code Block 
arView.scene.anchors.append(PlaneAnchor)

then when I play the app i get the following log.

Code Block 
2020-07-23 09:06:12.818800+0100 realityComposer[17010:2669060] Compiler failed to build request
2020-07-23 09:06:12.819015+0100 realityComposer[17010:2669060] [Graphics] makeRenderPipelineState failed [output of type ushort is not compatible with a MTLPixelFormatR16Float color attachement.].
2020-07-23 09:06:12.819055+0100 realityComposer[17010:2669060] [Graphics] makeRenderPipelineState failed.
2020-07-23 09:06:19.027024+0100 realityComposer[17010:2669100] [Graphics] Failed to find reflection for buffer clusterIndexTable
2020-07-23 09:06:19.027401+0100 realityComposer[17010:2669100] [Graphics] Failed to find reflection for buffer clusterIndexTable
2020-07-23 09:06:20.365286+0100 realityComposer[17010:2669100] [Graphics] Failed to find reflection for buffer clusterIndexTable
2020-07-23 09:06:20.365588+0100 realityComposer[17010:2669100] [Graphics] Failed to find reflection for buffer clusterIndexTable
2020-07-23 09:06:25.644804+0100 realityComposer[17010:2669100] [Graphics] Failed to find reflection for buffer clusterIndexTable
2020-07-23 09:06:25.690250+0100 realityComposer[17010:2669100] [Graphics] Failed to find reflection for buffer clusterIndexTable

plus each time when I tap on objects to perform the behaviour that I created in the realityComposer I get following bug in output log:

Code Block 
2020-07-23 09:06:31.537449+0100 realityComposer[17010:2669060] [Collision] Bad paramater (SphereRadius), value = 0.000000, passed to shape creation.

Anyone can advise on what could be the solution here?