IK Retargeter no longer working

Summary

Hello, the IK retargeting suddenly stopped working for me. All of my old IK Retargeters (That still work) crash my UEFN when I open them. Any new IK Retargeter I create does not work. The custom NPC is stuck in T Pose. But if I use my old IK Retargeter it works properly I am just unable to open the retargeter to edit the IK Rigs. If anybody has a fix it would be greatly appreciated!

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

AI

Steps to Reproduce

Create an IK Rig to put a custom skeleton on a guard
Use IK Retargeter with the FN Mannequin IK Rig and the custom skeleton IK Rig

Expected Result

Custom skeleton is successfully rigged

Observed Result

Custom skeleton T Poses unless using an old IK Retargeter

Platform(s)

UEFN