On the left is how the spheres look in editor outside of play, on the right how it looks when hitting play.
Is this how it should be or I’m missing something here? New project, new map, using Environment Light Mixer to add the lighting. And a post process disabling automatic exposure.
hmm. converting the level to world partition fixed the issue. now it looks the same in editor and in play mode. Lumen must work correctly in the editor only if the level is in world partition mode.
It looks like a reflection capture issue.
I’ve created a new empty level. It doesn’t use the world partition by default. If for example one creates a new open world level that one has the world partition setup included.
I’ve used the Tools->Convert Level menu option and converted the level to use the world partition. Now the lighting works.
maybe this is intended behavior 
