So, in one of my rooms, it for some random reason bakes green color into lighmap. I have no idea why, since in other room (that has the same setup) is totally fine. It all started after I put tables in. All rooms have the same setup, one stationary light, one box reflection capture.
Yes. Even tho the light had the same parameters as other lights (I did copy-paste batch) I deleted it and copy pasted light from another room and the problem was gone. It also may have been error coloring that I didn’t notice was turned on. To be honest I have no idea what solved it, but I fixed it somehow and in that moment that mattered to me.
My best guess is the tree, try to remove it and see if anything changes. Make sure to bake the light. If that doesn’t help, I’m out of options, I was using UE4 only for very short period of time so my knowledge is very limited and I’m not working in UE4 anymore.