So I have constructed this scene. Showing the scale of something vs manhattan. I have put a small marble on the rooftop but this marble is all messed up.
Here you can see it's all jittery
and here you can see what it looks like in render mode. Notice the shadows.
I feel like it may be related to the scale of the scene. However, I tested it on another scene with the same scale and there is no problem. It's also happening on the table although it's not as visible. I have no idea what is causing it. I'm trying to look around the settings to see why it just seems to be happening here.
Problem persists with Eevee too.