# Connecting the rig to Motion Capture breaks the leg

**URL:** <https://kangaroobuilder.discourse.group/t/connecting-the-rig-to-motion-capture-breaks-the-leg/61>\
**Category:** General\
**Created:** [January 21, 2026, 7:55pm UTC](https://kangaroobuilder.discourse.group/t/connecting-the-rig-to-motion-capture-breaks-the-leg/61 "2026-01-21T19:55:57Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Rigonaut](https://avatars.discourse-cdn.com/v4/letter/r/74df32/32.png) [@Rigonaut](https://kangaroobuilder.discourse.group/u/Rigonaut)\
**Post date:** [January 21, 2026, 7:55pm UTC](https://kangaroobuilder.discourse.group/t/connecting-the-rig-to-motion-capture-breaks-the-leg/61/1 "2026-01-21T19:55:57Z")

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When I click the button “connect body to human ik” the legs move very far back. I think maybe is ok, but when I click characterize, then the legs are also bad

Is there something I do wrong?

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**Author:** ![ThomasBittner](https://avatars.discourse-cdn.com/v4/letter/t/f08c70/32.png) [@ThomasBittner](https://kangaroobuilder.discourse.group/u/ThomasBittner)\
**Post date:** [January 21, 2026, 8:00pm UTC](https://kangaroobuilder.discourse.group/t/connecting-the-rig-to-motion-capture-breaks-the-leg/61/2 "2026-01-21T20:00:31Z")

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When you open your preferences (Windows → Settings/Preferences → Preferences, do you see anything other than centimeter?

If you have anything else set, try switching it back to centimeter,

And try the button again

 ![image](https://canada1.discourse-cdn.com/flex009/uploads/kangaroobuilder/original/1X/35c2caf0aaa63ffd7167ec56a4ec18d719f036bf.png)

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**Author:** ![Rigonaut](https://avatars.discourse-cdn.com/v4/letter/r/74df32/32.png) [@Rigonaut](https://kangaroobuilder.discourse.group/u/Rigonaut)\
**Post date:** [January 21, 2026, 8:25pm UTC](https://kangaroobuilder.discourse.group/t/connecting-the-rig-to-motion-capture-breaks-the-leg/61/3 "2026-01-21T20:25:02Z")

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Works, thank youuuuu

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**Author:** ![ThomasBittner](https://avatars.discourse-cdn.com/v4/letter/t/f08c70/32.png) [@ThomasBittner](https://kangaroobuilder.discourse.group/u/ThomasBittner)\
**Post date:** [January 22, 2026, 6:26pm UTC](https://kangaroobuilder.discourse.group/t/connecting-the-rig-to-motion-capture-breaks-the-leg/61/4 "2026-01-22T18:26:50Z")

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Good to hear that!  
I’ll make sure this is handled better in the tool on the next publish