ProcessTriangleRange_Mask Crash on ARCNView.hitTest()

Spatial Computing ARKit
tempt
tempt OP
Created Feb ’21
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Our team is beta testing an AR application that is prone to BAD ACCESS crashes on a thread ProcessTriangleRange_Mask when hitTest( : CGPoint) is called on the ARSCNView. Because of this crash, our application is not production ready. How can this error be prevented/avoided/recovered from?
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Porkchop Express
Porkchop Express OP
Feb ’21
Having an identical crash on my codebase, looking for a workaround. If I can find one I'll post here.

Note: In my case it's the same crash, but it happens in my codebase when calling from SCNNode.hitTestWithSegment
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Porkchop Express
Porkchop Express OP
Mar ’21
@tempt - I found the solution (at least for my problem) here: https://developer.apple.com/forums/thread/130599?answerId=662860022#662860022

The issue is that I was not deep copying element data from ARMeshAnchors, I was simply referencing it when making an SCNGeometry.
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ProcessTriangleRange_Mask Crash on ARCNView.hitTest()
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