Packaged project is completely dark

After I have packaged my project for Win64, and I go and open up the binary from windows, the entire scene is dark and I cannot see any geometry (I know it’s there, though, because if I move I fall off my platform.) However, I can see the red debug lines I’m drawing.

This is a bit of a mystery for me, I searched around here on the answer base and couldn’t find anything yet. I’ll delete this question if I find an answer (still looking.)

Otherwise, I would really appreciate it if someone could shed some light on this! (ha!)

You need to set the game default map to the map you want. Edit > Project Settings > Maps & Modes.

Doh! That was it! Thanks so much, @Jacky!