Reflection ray artifacts

Question

So, I'm trying to create a repeater. I followed this guide: https://www.youtube.com/watch?v=SMOJGxyd9BE&list=PLHm_I0tE5kKPPWXkTTtOn8fkcwEGZNETh&index=9

So everything works fine, except that I ran into one problem. I tried to make the plane under the spheres reflective, but when I did this, I got this strange effect.

If you notice that these dark spots are reflected on the ground. I tried to figure out what was going on, but this is strange because the whole plane has the same rate, so the reflections must be correct. Has anyone had experience with this? I checked and it was not related to shadows.

Answer 1

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