I found an alternative… although not perfect, try this:
Create an extra target bone, about 1 or 2 meters away from your mesh, in your rig. In my case, i did this is blender, then reimported the model with the new file, and said YES to unreal regenerating the skeleton.
Then, in your animation blueprint, use a spring bone on that new bone, set it to translation, and set it to move a lot (i used 400 stiffness and 5 damping).
After that, add a “Look At” node, making your original bone rotate to face our new moving bone.
So the target bone will start moving, and the original bone will rotate to look at it. Kinda works!
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