# Custom material makes disappear meshes

**URL:** <https://forum.babylonjs.com/t/custom-material-makes-disappear-meshes/17009>\
**Category:** Questions\
**Created:** [December 29, 2020, 8:38pm UTC](https://forum.babylonjs.com/t/custom-material-makes-disappear-meshes/17009 "2020-12-29T20:38:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Dshah\_H](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/dshah_h/32/3607_2.png) [@Dshah\_H](https://forum.babylonjs.com/u/Dshah_H)\
**Post date:** [December 29, 2020, 8:38pm UTC](https://forum.babylonjs.com/t/custom-material-makes-disappear-meshes/17009/1 "2020-12-29T20:38:49Z")

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hey team,

I am trying to change a material on thinInstance using custom material atlas ( thanks to @Evgeni_Popov )

I need to have different colour on mesh, when I apply custom material, I could see the colour is changed, but some faces disappears, here PG

> **[Babylon.js Playground](https://playground.babylonjs.com/#54QTEN%233)**

if comment line 74, you will see other meshes appears normally

> **[Babylon.js Playground](https://playground.babylonjs.com/#54QTEN%231)**

what am I missing :?  
Thanks

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<div class="post-metadata">

**Author:** ![Dshah\_H](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/dshah_h/32/3607_2.png) [@Dshah\_H](https://forum.babylonjs.com/u/Dshah_H)\
**Post date:** [December 29, 2020, 9:04pm UTC](https://forum.babylonjs.com/t/custom-material-makes-disappear-meshes/17009/2 "2020-12-29T21:04:32Z")

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figured, it were my normal issue, had to flip xD  
solved