Lumen lightning and shadows

Hello, sorry for bothering you again, but I tried the new lighting technique with higher indirect lighting intensity and I have a few problems (I hope these are the last ones).

  1. Weird spots of light when the light is bouncing off the ceiling and wall onto the floor.



    This is how it looks, one of the pictures is how it looks in game, the second one is with all light channels turned off for the floor. Does this have any solution?

  2. Weird shadow borders when using megalights.


    Ive seen some posts already mentioning this, but the responding people either didnt know what to do with it or never seen it in their projects. For me its happening no matter what settings I have and I dont think the game is really playable with that.

I also tried to fix the lumen delay, but increasing the lumen update speed didnt help at all. What helped instead was making the objects that the light was bouncing off darker, but now my world has very dark shadows again. I guess Ill have the find the right balance.