Why scene get very dark after building?

Questions & Answers
1

Hi, I am experiencing this issue that the lighting looks fine in editor but becomes dark after built and run.

Here is in editor:
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Here is how it looks after building the exe:
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Here are some screenshots of my settings:
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I have spent an entire day on this issue… Can anyone help?
Thanks a lot!

2

You have to generate the lighting
*
Window > Rendering > Lighting > Generate Lighting