# Crash when disposing light (ClusteredLights need to be present)

**URL:** <https://forum.babylonjs.com/t/crash-when-disposing-light-clusteredlights-need-to-be-present/60667>\
**Category:** Bugs\
**Tags:** lighting\
**Created:** [September 26, 2025, 12:25pm UTC](https://forum.babylonjs.com/t/crash-when-disposing-light-clusteredlights-need-to-be-present/60667 "2025-09-26T12:25:51Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Joe\_Kerr](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/joe_kerr/32/39017_2.png) [@Joe\_Kerr](https://forum.babylonjs.com/u/Joe_Kerr)\
**Post date:** [September 26, 2025, 12:25pm UTC](https://forum.babylonjs.com/t/crash-when-disposing-light-clusteredlights-need-to-be-present/60667/1 "2025-09-26T12:25:51Z")

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Hi everyone,

Please see playground: [https://playground.babylonjs.com/#WLDCUC#251](https://playground.babylonjs.com/#WLDCUC#251)

- tested in WebGPU
- can be fixed when commenting L26 (i.e. disable ClusteredLights)
- will not crash when disposing “+StaticLight”

Best wishes  
Joe

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**Author:** ![Cedric](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/cedric/32/2742_2.png) [@Cedric](https://forum.babylonjs.com/u/Cedric)\
**Post date:** [September 26, 2025, 1:21pm UTC](https://forum.babylonjs.com/t/crash-when-disposing-light-clusteredlights-need-to-be-present/60667/2 "2025-09-26T13:21:20Z")

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cc @Evgeni_Popov

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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:** [September 26, 2025, 3:10pm UTC](https://forum.babylonjs.com/t/crash-when-disposing-light-clusteredlights-need-to-be-present/60667/3 "2025-09-26T15:10:39Z")

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Assigned @Evgeni\_Popov on September 26, 2025, 3:10pm UTC



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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:** [September 26, 2025, 5:20pm UTC](https://forum.babylonjs.com/t/crash-when-disposing-light-clusteredlights-need-to-be-present/60667/4 "2025-09-26T17:20:25Z")

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Thanks for reporting, here’s the fix:

> <https://github.com/BabylonJS/Babylon.js/pull/17206>
>
> See https://forum.babylonjs.com/t/crash-when-disposing-light-clusteredlights-nee…d-to-be-present/60667

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<div class="post-metadata">

**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:** [September 26, 2025, 5:22pm UTC](https://forum.babylonjs.com/t/crash-when-disposing-light-clusteredlights-need-to-be-present/60667/5 "2025-09-26T17:22:04Z")

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Unassigned @Evgeni\_Popov on September 26, 2025, 5:22pm UTC