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No lighting in Game Mode

I'm returning to a project that functioned normally, packaged normally, now that I'm making changes everything appears the same as I left it in Editor, but in Play I see a black screen, well almost black, have a water plane object that throws off a bit of glinting. I also hear the audio. I tried rebuilding lighting, but that fails. To note, I'm not using any static lights, only movable, specifically to avoid building lightmaps, since my UVs contain too many small islands (scans from photogrammetry). In packaging the game before I never built lighting for this reason, so not sure if failure when building lighting is predicted or possibly related to the current problem. Sp what could explain why lighting all but disappears in game mode?

Big thanks for ideas.

Product Version: UE 4.21
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asked Mar 06 '19 at 02:41 PM in Using UE4

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