[GroundMesh] How clear debuging error that 'ground mesh cloning'

Thank you.
Disappear ‘Scene.Render()’ in error log.
But, this error is still remain.
And, i’m check & tried case that [[SOLVED] HighlightLayer + onNewMeshAddedObservable issue on babylonjs 4]

But, my error log was claim property ‘setter’.

[https://playground.babylonjs.com/#N628VD#1]

Can play clone meshes on PG. But don’t know how debug.
We can debug in this place? like a ‘VisualStudioCode’?