5.4.1
Seems to be a bug:
- Created empty Level Sequence
- Add metahuman BP to sequence
- Observe Face_ControlBoard_CtrlRig is present
- delete the Face_ControlBoard_CtrlRig track
- Click Face + > Control Rig > Control Rig Classes
- Observe in this menu Face_ControlBoard_CtrlRig does not exist (see screenshot)
You cannot get back Face_ControlBoard_CtrlRig after you’ve deleted it even though it exists in the project.