When I turn on visibility collision and use the flatten tool in landscape mode, there is a giant purple box stuck to my cursor. The box is stuck on the Z=0 plane and I can’t see through it, so it makes it impossible to see what I’m doing anywhere below Z=0. It goes away if I switch to the Lit or Unlit view modes, but that makes it much harder to see what I’m doing. Does anyone know how to get rid of this purple box?