Lighting ?Lumen? Flickering

Problem:
Lumen/Lighting is constantly ‘flickering’ for actors spawned in after beginplay. See here:
https://imgur.com/WBQFMhQ

This lighting flickering/washing over effect is reduced when i get up close it. It goes away altogether if i dont re-generate the house post beginplay.
My workaround right now is making it generate with instaceStaticMesh instead. Which is what i’ll probably end up shipping with anyways.

Regardless, I would like to know what is going on here. I just disabled static lighting to see if that helped. It did not.

Thanks,
Scott