1. Spawn in the default VRChat home world.
  2. Set the roof to the cube theme from the table, located by the couch.
  3. Walk around while looking at the cubes on the ceiling.
Cubes will render over each other or incorrectly render them removing them from view.
Locations seen are, near the mirror, near the "mute or block" sign and standing under the cubes.
Using the VRChat camera or drone can produce the same results.