How to reproduce:
1. Open the attached “IN-95249” project
2. Open the “SampleScene” Scene
3. Observe the Game view
4. Build and run a WebGL build (File → Build Profiles → Web → Build And Run)
5. Observe the built project

Expected result: Red cubes appear on the terrain both in the Game view and the built project
Actual result: Red cubes appear in the Game view, but do not appear on the terrain in the built project

Reproducible with: 2022.3.59f1, 6000.0.40f1, 6000.1.0b8, 6000.2.0a5

Reproduced on: Windows 10(User), Windows 11
Not reproduced on: No other environment tested