I have 10 levels, open each new using OpenLevel function from my level logic actor. Actually i understand that having special actor (blueprint) on scene, that contain logic is no good, but didn't fint other way how to do certain things. I think that's not a problem itself.
So when i play game in editor, eveything is fine, i got transition into new level, when i call OpenLevel function.
But when i build game, there is only 1 level. How i supposed to include all levels in build?
Maybe you are looking for:
Edit -> Project Settings -> Packaging -> List of maps to include in a packaged build
List of maps to include in a packaged build
https://forums.unrealengine.com/showthread.php?73136-Generic-Shooter-Support-Thread/page4