Lightmass Portal X Scale resets on update

After setting the "X" Scale of a Lightmass Portal, attempting to move/update the object causes the scale to reset to 10.0. Is this necessary for some reason?

1. Open UE4 Editor (any project)
2. Add Lightmass Portal from modes tab
3. Set X Scale falue
4. Use transform gizmo to move Lightmass Portal

Result:
X Scale value resets to 10.0 after move

Expected:
Set value is retained after move