This never goes away, but always makes progress. I can go to work and come home, eat dinner and it is still chugging away. how can I tell this to stop?
So, replies on this site just aren’t what they used to be from about 2 years ago. I guess all the people in the know are on the paid version of the forums. Anyway I solved the problem and will list it here if anyone else has this problem.
1.) Window → Lighting select “Scene” tab and turn off both [Precomputed Realtime GI] and [Baked GI].
2.) Under Edit → Preferences select the [GI Cache] tab. Set your maximum cahce size to 25 gig and then click the “clean cache” button.
When you are done working and goto to bed repeat step 1 but turn them back on and set CPU usage to “unlimited” for the “Precompilied Realtime GI” since your going to bed and don’t care that its hogging all your cpu.
It also helps to post to the correct forum:
https://forum.unity3d.com/forums/global-illumination.85/
At the time of issue i didn’t know it was related to GI.