Difference between 'play' in viewport and 'play' as standalone game

Hey all, I recently bought the Evermotion pack Archmodels for UE4 Volume 4 - Archmodels for UE Vol 1 in Architectural Visualization - UE Marketplace - I’m trying to steal the post processing/light mass etc settings for a forest scene I’m doing but want to understand them a little - the issue is that when I ‘play’ the scene in the viewport I get the lighting on the left of the image, when I ‘play’ as a standalone game I get the lighting on the right of the image, I presumed that when lighting was baked you’d see the same lighting throughout - can anyone advise me on the reasons behind this?

Cheers,

Solved, I increased settings in ‘Engine scalability’

It looks like you have disabled directional light in the viewport.