I have one wall that is shimmering, the rest are fine. See below, wall surrounded with red:
What could be causing it to shimmer? How can I fix it?
You probably have two objects at that same place, or more precisely, two objects with a coincident surface in that place. When this happens, the rendering engine can’t decide which one is in front of the other, and we get this effect, which is called “z-fighting”.
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