MSAA Breaks Deffered Decals On Mobile Preview

Decals seem to not render correctly while MSAA is enabled and in a mobile ES2 preview.

1. Open a blank project
2. Drag a deffered decal actor into the scene
3. Save as testmap
4. Change to mobile preview ios and confirm that the decal is still visible
5. Go into project settings and set MSAA to 8x
6. Restart project then load up testmap
7. Enable mobile ios ES2 preview

RESULT
The decal is no longer visible

EXPECTED
The decal is still visible after changing to mobile preview