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

**URL:** <https://forum.babylonjs.com/t/groundmesh-how-clear-debuging-error-that-ground-mesh-cloning/5863>\
**Category:** Questions\
**Tags:** tutorial\
**Created:** [September 25, 2019, 7:30am UTC](https://forum.babylonjs.com/t/groundmesh-how-clear-debuging-error-that-ground-mesh-cloning/5863 "2019-09-25T07:30:18Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\
**Post date:** [September 25, 2019, 1:56pm UTC](https://forum.babylonjs.com/t/groundmesh-how-clear-debuging-error-that-ground-mesh-cloning/5863/2 "2019-09-25T13:56:26Z")

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This is almost impossible to answer without a repro. Could you share a playground or smthg else where we could take a look ?

My guess is the deepCopier is trying to assign observable which sounds utterly strange.

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