1.Create a project from ThirdPerson template.
2.Open "Levels" from "Window" menu.
3.Create a new subLevel and set it to Lighting Scenario.
4.Set persistent level as current level.
5.Add some foliage to persistent level.
6.Build light and save all map.
7.Lauch a standalone game.
The lightmaps of foliage are incorrect.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-72154 in the post.