Foliage lightmaps will not match properly to the lighting when using a lighting scenario. They will look normal if you select the Foliage tool but in PIE they will still be incorrect.
Working as expected in 4.19 CL# 4033788
Found in 4.20 CL# 4369336 and 4.22 CL# 4413632
Results:
The foliage placed in the editor will have incorrect lightmaps
Expected:
The lightmaps would match correctly with the lighting scenario
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-64707 in the post.