Live Link Curve Debugger?

Hey guys, I am attempting to debug some live link animation issues and cant get the “Live Link Curve Debugger” to show any data at all.
I have motionbuilder open with everything setup, I have link link all setup in unreal. I can rotate a limb in motionbuilder and it rotates in real time in unreal editor. I then open the debugger window and select the correct “Live Link Subject Name” at the top of the debugger and it says “No Curve Data” even tho the character in unreal is reacting to what is happening in motionbuilder.
Has anyone run into this? How do I get the curve data to show up?