ControlRig keeps resetting (to A-Pose) in sequencer

Development Character & Animation
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I’m creating a pretty basic animation in Sequencer with ControlRig using a Metahuman.

Often (but not each time) I’m moving an IK handle (e.g. hand_r_ik_ctrl), the ControlRig breaks, the skeleton seems to ‘disconnect’ from the rig and shows the default A-Pose. Recompiling the Metahuman BP solves the issue (until I move an IK handle again).

My setup is the following:

  • a fresh project without modifications, UE5.4.1 with minimal plugins for Metahuman enable
  • default Metahuman (tried both high and low quality)
  • base animation (one of the default “Idle” movements from the CitySample, retargeted)
  • MetaHuman ControlRig (layered) adding some custom movement to the “Idle” movement

The problem is of course that it’s very hard to create custom movements when you have to recompile the BP each time you move the rig.

Has anyone else experienced the same issue? Any workarounds?

Is my setup (base animation with layered controlrig) advisable?

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To help out any others arriving here with the same problem:

Didn’t find a solution to make this setup (animation with layered control rig) stable, but you can convert the animation to a controlrig. Using the resulting controlrig as a base you can add custom movements using a secondary ‘additive’ controlrig.

See also here (second half of the video) for more:

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