How to limit blendshape max\min values from Live Link

I have a live link node that is using live blendshape values to control my character’s face via an animation blueprint.

Is it possible to intercept and limit those values before they reach the final pose node?

I tried using a LiveLink->Modify Curve node with Get Curve Value node as input. When I enter the “jaw” as curve name into the Get Curve Value node the jaw blendshape becomes locked at 0.

Is the Get Curve Value node not live? How do I access the live blendshape values from Live Link?