(since it’s still in beta) are you struggling with the official GPU Lightmass in Unreal Engine 4.26?
In this video, I will show you how to download and use
luoshuang’s GPU Lightmass 
If you don’t know, GPU Lightmass is the best option to achieve high-quality baked lights in your architectural projects … it’s a must for archviz!
Feedback is super welcome! 
