I´m working on my first game in UE5 and I have problem with lighting or with Lumen.
I have weird black glitch if I run arround the corner. I don´t know if I have some settings wrong or where is the problem. I tried some solution which I found but nothing helped.
The walls are from small blocks, but they have overlaps, but if I make small room from these walls without light inside the light still goes throught in Lumen Scene view. I tried make these walls thicker, but this didn´t help me with black glitch and also I need these walls to be 5cm thick.
I tried the command and it helped little bit, now the black glitch is not that visible but still there.
I also found that is not just black glitch, the colour depends on the background, if I use Sky Atmosphere or just unlit sphere in some colour the glitch has that colour.
I found that problem is probably in my walls, because there is no problem with standard cube, but only if the wall is really thick (50+ cm).
But I don´t know what is wrong in my walls, I made them from cube in blender, only modified them to overlap inside, because I had these black artefacts before if I made them without overlap. And also I would prefer make walls around 10-15cm thick, because otherwise it will not work for what I want.
I probably start again, but I´m not sure what is wrong.