I don't quite know how it happens but it happens at random times when I enter the plaza. I'm not sure if this happens to other people or not but please tell me if it does. Also I am not aware if this glitch is common or not so I just thought I would report it.
I do not recall ever previously encountering this glitch. Perhaps it may be due to an issue with your patch/files? That would be my initial guess.
Shite graphics card or something along those lines. A lot of games on PC get something like this occasionally for certain GPu