contact_l and contact_r curves?

Development Character & Animation
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1

Does anyone know what Animation Modifier Epic used to generate the ⁨contact_l⁩ and ⁨contact_r⁩ curves for the GASP animations?

I can’t find anything default in any of the custom Modifiers. None of the default epic ones provide anything like this.

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2

I’m assuming these are the new mover animations? They may be using those curves to evaluate footlocking, so there won’t be an AnimNotify.