The light rays seem to be ignoring the edges of this object in particular.
Could you give to us more context please?
Nevermind my last post. I have figured out a way to share videos.
Link to the video file showcasing the lighting bug:
This seems to be happening in a lot of other places aswell now
Edit: Now it seems to be happening basically everywhere. The light object is pretty much unusable.
It seems to be caused by big tile objects. By the looks of it, wide objects make the lighting system freak out.