HandPoseRequest & AR

I tried to use handposerequest on arkit.

It does get result on VNRecognizedPointsObservation.

But, when I tried to get information of detail,

like : let thumbPoint = try!observation.recognizedPoints(forGroupKey: .handLandmarkRegionKeyThumb)

[Segmentation fault: 11 ] keep comes up.

Is this a bug ? or do I making some mistakes?
I'd say we're not the only ones... fingers crossed.
HandPoseRequest & AR
 
 
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