Yep, there’s a little gotcha here. Animation Channel Control’s have a display name and a script name. Both are modifiable, but the one that matters is the script name. That is the name of the control that you are passing into the Set Control Bool or Float and the key that is searched by FRigControlElement* ControlElement = DynamicHierarchy->Find<FRigControlElement>(Key).
When you select the channel in the rig hierarchy, you’re looking for this:
[Image Removed]You can double click that and rename it right there.