IK Rig from Blender - Bones snapping to Root

[k_dizzle_d]

(I’m hoping this is an obvious fix) Looking for the right direction to solve this issue. Exporting with Only Deform Bones did nothing. Bones parented in Blender to an IK are behaving strange, even after attempting to un-parent. During Layered Blend by Bone, the bones will snap to the root, but the other bones will animate normally.

Any help or idea is greatly appreciated

[k_dizzle_d]

Not sure if this was the solution after ripping my hair out but I ended up adjusting the Layered Blend by Bone to NOT include the Root bone, and the IK’d bones went back to normal. Also re-imported and restarted UE5 too to make sure.