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.