Screen Space Reflection Bizarre Artifacting

I am trying to use the Post Processing Screen Space Reflection effect in my scene. It works, but it causes bizarre and ugly artifacting. See photo:



This is just a plane with the Standard shader, a cube with a rainbow texture, a directional light, and a skybox. You can see the artifacting further back on the plane. When I change the SSR Preset to "Custom" with a low "Maximum March Distance" and low "Maximum Iteration Count" the issue disappears.



Specs:
Post Processing Version 3.1.1
Unity 2021.1.24f1

Any idea what might be causing this issue? I can export a scene if necessary.

 

Is it against the rules to bump this? I still haven't found the solution to this problem. My workaround is to avoid using screenspace reflection entirely. I'm using an additional, upside-down camera and a rendertexture instead.