I have noticed this around 11:50PM EST that there’s a weird shadow behavior for the future lighting technology where parts will override each other’s shadows. What I mean by this is that parts will ignore existing shadows cast by other parts and will create unwanted slip ups of light.
Here’s some examples:

This is the result of a part behind the wall casting a shadow on one of the walls of the roofed room:

How to reproduce:
- Place Part 1 of any size that is big enough to cast a shadow
- Place Part 2 close enough to it in a way that Part 2 casts a shadow on Part 1
- Look at the shadow Part 1 is casting
I have also made a repro place where I show some of the shadow issues that I have faced so far:
shadowbugrepro.rbxl (25.5 KB)