Virtual Bones Are Not Retained in Retargeted Animation Aim Offsets

Occurs 5/5 times

Virtual Bones are not retained in Retargeted Animation Aim Offset.

Regression does not occur as UE5 Manny assets are not available for retargeting before UE5.   

Repro Steps:

1. Create a TPS blank project.
2. Migrate the Animation Starter pack into the TPS project and open the Aim_Space_Hip Aim Offset.
3. In the Skeleton Tree View add several Virtual Bones - Ex. a) From the head to the hand_r, b) From lowerarm_l to lowerarm_r, and c) From hand_l to hand_r.
4. Switch to the Animation view with the Virtual Bones selected and see that they are animating correctly.
5. Save the Aim Offset and Retarget the Animation Assets from RTG_UE4Manny_UE5Manny.
6. Open the retargeted Aim Offset.

Expected: Virtual Bones appear and are functioning in the new Aim Offset.
Actual: Virtual Bones are missing.