Gameplay lighting differs from preview lighting

Development Rendering
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1

Hey, so I’ve been having a problem that has risen lately, making me feel like I may have caused the problem to occur.
Whenever I play/simulate the game in the editor, it appears to suddenly change the lighting. It seems to be much more emissive, and I can’t pin down the reason why.

Here is the scene in the preview :

349006-highresscreenshot00081.jpg
349006-highresscreenshot00081.jpg1632×869 141 KB

Here is the scene once I play/ simulate the game

349007-highresscreenshot00082.jpg
349007-highresscreenshot00082.jpg1632×869 197 KB

I’ve used ue4 for years now, and I’ve never stumbled across a problem so random and unpredictable as this. Sometimes, the editor shows the simulated preview instead; which I decided to remove all lighting and post-processing - and it still showed signs of being lit.

Any ideas and suggestions would be appreciated. Cheers!

2

I’ve turned down the intensity of the skylight, which gives the same lighting effect as the preview (the darker tone which I prefer).

However, it’s still odd how Unreal Engine 4 decides to change lighting between P.I.E and preview at which seems at random intervals.