# Setting getter-only property "hasThinInstances"

**URL:** <https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954>\
**Category:** Questions\
**Created:** [May 19, 2020, 3:20am UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954 "2020-05-19T03:20:17Z")\
**Posts on this page:** 11\
**Page:** 1

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**Author:** ![phaselock](https://avatars.discourse-cdn.com/v4/letter/p/da6949/32.png) [@phaselock](https://forum.babylonjs.com/u/phaselock)\
**Post date:** [May 19, 2020, 3:20am UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/1 "2020-05-19T03:20:17Z")

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Um, quick question I guess. Getting warnings popping up in ffox console: `setting getter-only property "hasThinInstances"` today. And closed PR on github shows 1 recent add but the doc link in what’s new.md says page not found. Any ideas?

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**Author:** ![Evgeni\_Popov](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/evgeni_popov/32/4432_2.png) [@Evgeni\_Popov](https://forum.babylonjs.com/u/Evgeni_Popov)\
**Post date:** [May 19, 2020, 11:41am UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/2 "2020-05-19T11:41:37Z")

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Yes, thin instances is a new feature, the doc is coming.

I don’t have this error in firefox: do you have a PG that reproduces the problem?

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**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\
**Post date:** [May 19, 2020, 2:11pm UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/3 "2020-05-19T14:11:11Z")

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> [@phaselock](#):
>
> hasThinInstances

i bet you are doing a clone right? I’ve just added hasThinInstances in the list of not clonable properties

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<div class="post-metadata">

**Author:** ![phaselock](https://avatars.discourse-cdn.com/v4/letter/p/da6949/32.png) [@phaselock](https://forum.babylonjs.com/u/phaselock)\
**Post date:** [May 20, 2020, 1:19am UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/4 "2020-05-20T01:19:51Z")

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Yh, I guess it has to do with cloning. I’m not seeing the warning today. Good fix, I guess ? 😃

No biggie, I’ll wait for the doc, cheers !

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**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\
**Post date:** [May 20, 2020, 2:35pm UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/5 "2020-05-20T14:35:20Z")

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> [@phaselock](#):
>
> Good fix

It is fixed yeah 🙂

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**Author:** ![alvov](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/alvov/32/2061_2.png) [@alvov](https://forum.babylonjs.com/u/alvov)\
**Post date:** [June 4, 2020, 5:51pm UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/6 "2020-06-04T17:51:37Z")

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hi! still reproduces for me when cloning InstancedMesh 🙂 [Babylon.js Playground](https://www.babylonjs-playground.com/#RKUIMA)

i guess `hasThinInstances` needs to be added to excluded list there too

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**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\
**Post date:** [June 4, 2020, 9:18pm UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/7 "2020-06-04T21:18:56Z")

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Rats! I will add it right now!

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<div class="post-metadata">

**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\
**Post date:** [June 4, 2020, 9:19pm UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/8 "2020-06-04T21:19:28Z")

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> [@alvov](#):
>
> `hasThinInstances`

Wait it is already in the list. Can you make sure you are on the right version?

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**Author:** ![Evgeni\_Popov](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/evgeni_popov/32/4432_2.png) [@Evgeni\_Popov](https://forum.babylonjs.com/u/Evgeni_Popov)\
**Post date:** [June 4, 2020, 9:33pm UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/9 "2020-06-04T21:33:11Z")

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The exclusion is missing in the `InstancedMesh.clone` method.

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<div class="post-metadata">

**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\
**Post date:** [June 4, 2020, 11:18pm UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/10 "2020-06-04T23:18:45Z")

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ok! Will fix that

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<div class="post-metadata">

**Author:** ![alvov](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/alvov/32/2061_2.png) [@alvov](https://forum.babylonjs.com/u/alvov)\
**Post date:** [June 9, 2020, 8:36am UTC](https://forum.babylonjs.com/t/setting-getter-only-property-hasthininstances/10954/11 "2020-06-09T08:36:35Z")

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Thank you! Fixed in v4.2.0-alpha.19