I had some time to test the build times on 4.17 and 4.18 and from what I’ve seen, 4.18 is a lot slower than 4.17, using the same settings. I have left the **Num Sky Lighting Bounces **to 1, just as the 4.17 version is natively set up, but the bake times have tripled, sometimes it’s even worse.
I will post the entire scene, lightmass.ini and the settings I’m using in this thread, tomorrow.
I need someone to confirm this, or maybe correct me, if I’m doing something wrong.