# Metahuman for maya pose editor mirror issue

**URL:** <https://forums.unrealengine.com/t/metahuman-for-maya-pose-editor-mirror-issue/2659962>\
**Category:** Feedback & Requests\
**Tags:** Maya, unreal-engine, metahuman\
**Created:** [September 26, 2025, 3:01am UTC](https://forums.unrealengine.com/t/metahuman-for-maya-pose-editor-mirror-issue/2659962 "2025-09-26T03:01:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Sk4walkerGG](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Sk4walkerGG](https://forums.unrealengine.com/u/Sk4walkerGG)\
**Post date:** [September 26, 2025, 3:01am UTC](https://forums.unrealengine.com/t/metahuman-for-maya-pose-editor-mirror-issue/2659962/1 "2025-09-26T03:01:29Z")

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Hi, I recently encountered an issue while using the Pose Editor in Maya. I couldn’t find any related solutions in the official documentation. The problem is that the **mirror function doesn’t work at all** — whether I try to mirror the solver or the pose.

I followed the official recommendation of using **regular expressions with named groups** , but it had no effect. The mirrored solver comes out completely empty, with no poses, and doesn’t function properly.

In the previous version of Pose Editor, simply using mirror would fully mirror the solver along with its poses. But in the latest version, mirror doesn’t work properly at all.

Has anyone actually managed to get mirror working successfully?

PS.  
For context, my usual workflow is:

- First, I import the MetaHuman character via **Character Assembler**.

- Then, in Pose Editor, I import the **body DNA** (while making sure to uncheck _Import Skeleton_ and _Import Geometry_).

- This way I can create RBF nodes and connect them to the joints directly in the same scene.

- I prefer this because it lets me adjust RBF solver poses or add extra poses while having the **full geometry (both head and body)** present in the file.

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<div class="post-metadata">

**Author:** ![shicaili1](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@shicaili1](https://forums.unrealengine.com/u/shicaili1)\
**Post date:** [February 4, 2026, 3:54pm UTC](https://forums.unrealengine.com/t/metahuman-for-maya-pose-editor-mirror-issue/2659962/2 "2026-02-04T15:54:31Z")

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```auto
I'm having the same problem; the solver is empty after mirroring. Do you have a solution? Thank you!

```

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<div class="post-metadata">

**Author:** ![animatorChi](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@animatorChi](https://forums.unrealengine.com/u/animatorChi)\
**Post date:** [March 4, 2026, 2:54pm UTC](https://forums.unrealengine.com/t/metahuman-for-maya-pose-editor-mirror-issue/2659962/3 "2026-03-04T14:54:11Z")

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For mirror, try the regex at the bottom of the page [Authoring RBF in Maya | MetaHuman Documentation | Epic Developer Community](https://dev.epicgames.com/documentation/en-us/metahuman/authoring-rbf-in-maya)

The simple replace using “\_l” & “\_r” will turn “spine\_04\_latissimus\_l” to “spine\_04\_ratissimus\_r” and destroy your scene.