To reproduce:

1. Download and open project from comment (repro914736_smallrepro.zip)
2. Open "intro_ext" scene.
3. Notice white X formed semi-transparent shapes.
4. Build project for Standalone player.
5. Notice that shapes look differently when built.

Actual result: Meshes lose their vertex colors what results in objects having different look. (Wrong)

6. Go back to Editor
On lighting settings, clear all baked lighting data
OR
Hide / remove the intro_ext_grass object, then bake again
7. Save the scene and build again

Actual result: Objects looks the same as in the editor. (Correct)

Reproduced with: 2018.2.2f1, 2017.2.0a1, 2017.1.0b8, 5.6.1p2, 5.4.4f1

Notes:
- Reproducible for both Enlighten and Progressive lightmapper;
- Reproducible only for Baked GI; not reproducible for Realtime GI.