Strange marks appear on screen

Random marks appear while I am moving in my game. Project is a TP project but I’m using it in an FPS camera. Basically I moved the camera to character’s head and placed it in the head socket. I think this ‘marks’ problem has connected to collisions between my character and meshes in the level. Whenever I am close to something, marks appear randomly no matter what while I’m moving. I don’t know the exact name for them so I call them ‘marks’. I uploaded 2 screenshots, one of them has small marks, other one has a big mark. It basically shows the sky behind every mesh and landscape. I experience these with every mesh and everywhere on my level. They appear and disappear so quickly while moving that I only managed to take a screenshot with them less on screen. Normally they are more.

maybe show the character BP where your camera is. The setup you have is called true first person where you use a full skeletal mesh but parent the camera to the head. Maybe the camera isnt far enough forward and the mesh is partially blocking the aperture.

I tried what you said but it didn’t help. Although I tested the situation with far meshes and the marks appear there too. So the problem isn’t about my character’s collision or the camera’s place. Marks appear on the meshes’ edges no matter how far I am from them. Edges like both ends of a wall, an opened door, a window etc. Probably it’s happening because of system’s handling capacity. I will try with everything on medium or low to see if it’s because my system can’t handle it and it causes marks.

Edit: I tried everything on Low but nothing changes. Still don’t know how to solve this issue.

I solved the issue. This is happening because of a feature called “Occlusion Culling”. It basically about not rendering the objects behind the object you look at for better performance. I disabled it through “Project Setting/Rendering” and it solved my problem. For more information and other ways to solve this please take a look at this video : https://www.youtube./watch?v=6MhsdwTW3SQ