Hello, can someone help me with the texture on the buildings? Why does it look that way? The squares stay in the same size, even if you are scrolling in and it only occurs by using the Path Tracer...

Hello, can someone help me with the texture on the buildings? Why does it look that way? The squares stay in the same size, even if you are scrolling in and it only occurs by using the Path Tracer. Thanks in advance.