Z-Fighting

Z fighting is when two objects are interlocked on the Z axis (horizontal axis) and there is a small overlap of the objects at a small angle. It flickers a lot and is really annoying. To fix it, you can pick up the object and put it back down slowly and the Z fighting should go away.

 

wouldnt picking it up and putting it down ruin the interlock? Please explain a little more in-depth.

 

You can brace it enough so the Z fighting goes away, but the object stays in the same spot. Usually, the object is angled the slightest bit and laying it flat helps.

 

think about it, start a new round and do it again slowly.

or brace it like APhsycho said