# UE will not correctly read the Groom precomputed guide weight

**URL:** <https://forums.unrealengine.com/t/ue-will-not-correctly-read-the-groom-precomputed-guide-weight/2278012>\
**Category:** Asset Creation\
**Tags:** hairworks, unreal-engine, question\
**Created:** [January 15, 2025, 8:47am UTC](https://forums.unrealengine.com/t/ue-will-not-correctly-read-the-groom-precomputed-guide-weight/2278012 "2025-01-15T08:47:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![PDE10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/pde10/32/1008648_2.png) [@PDE10](https://forums.unrealengine.com/u/PDE10)\
**Post date:** [January 15, 2025, 8:47am UTC](https://forums.unrealengine.com/t/ue-will-not-correctly-read-the-groom-precomputed-guide-weight/2278012/1 "2025-01-15T08:47:25Z")

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I exported the abc file from Maya XGen using [my script](https://github.com/PDE26jjk/XGenUEGroomExporter). If the precomputed groom\_guide\_weights and groom\_closest\_guides attributes are used, only UE5.3 can recognize them. In versions higher than 5.3, these attributes are not read correctly, resulting in hair not matching its guides and some hair shaking violently.  
Is this a bug? Or is there another correct way to use it?

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**Author:** ![f718938032](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/f718938032/32/1173540_2.png) [@f718938032](https://forums.unrealengine.com/u/f718938032)\
**Post date:** [January 17, 2025, 4:53am UTC](https://forums.unrealengine.com/t/ue-will-not-correctly-read-the-groom-precomputed-guide-weight/2278012/2 "2025-01-17T04:53:09Z")

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It’s a bug

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<div class="post-metadata">

**Author:** ![PDE10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/pde10/32/1008648_2.png) [@PDE10](https://forums.unrealengine.com/u/PDE10)\
**Post date:** [January 17, 2025, 2:42pm UTC](https://forums.unrealengine.com/t/ue-will-not-correctly-read-the-groom-precomputed-guide-weight/2278012/3 "2025-01-17T14:42:03Z")

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Thank you, do you have a solution?
