Physics Assets do not show Z (Blue) axis swing graphic.

4.13 Physics Asset graphics shown for swing settings in Physics Assets doesn't show for Z (blue) axis.

Regression from 3039270 (4.12.5 Release), found in 3106830 (4.13 Release).

1. Open 4.13 UE4 project that has a Physics Asset (such as ThirdPersonTemplate)
2. Open Physics Asset
3. in "Body Mode", select a body
4. Switch to "Constraint Mode"
5. Notice X and Y directions have swing limit graphic but Z doesn't
6. Create/Open 4.12.5 project, again with Physics Asset
7. Open Physics Asset.
8. Select same body, in "Body Mode"
9. Switch to "Constraint Mode"

RESULT:

4.13 appears to have a regression in the graphics shown for swing settings in Physics Asssets

EXPECTED:

4.13 has same visual aids as 4.12.5