Unable to pass Enum from AnimBP to ControlRig successfully

ControlRig doesn't work as expected because I can't pass an Enum from AnimBP to ControlRig.

If it is a RigElementKey of Struct instead of ERigElementType, it works normally. This is the current workaround.

1. Open attached project
2. PIE

expect : ERigElementType :: Bone is passed from AnimBP to ControlRig, and the head bone moves on the ground.

result : ERigElementType :: Bone does not pass from AnimBP to ControlRig and ControlRig does not work

[UE-23848] Bug Status

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