The phrase should be improved, which is displayed in point 6 below the board in Turn sequence:

from

„CONSTRUCT CUBE (uses 2 actions) - only 1 cube per planet - the total of your ships in orbital positions must exactly equal planet number."

on

„CONSTRUCT CUBE (uses 2 actions) - only 1 cube per planet - the total of your ships in orbital positions must exactly equal planet number. However, if the ONLY available space on the entire map is on a planet where you already have a cube, then you can place multiple cubes there. (Consistent with BGG interpretation quantum entanglement occurs)."

from

„CONSTRUCT CUBE (uses 2 actions) - only 1 cube per planet - the total of your ships in orbital positions must exactly equal planet number."

on

„CONSTRUCT CUBE (uses 2 actions) - only 1 cube per planet - the total of your ships in orbital positions must exactly equal planet number. However, if the ONLY available space on the entire map is on a planet where you already have a cube, then you can place multiple cubes there. (Consistent with BGG interpretation quantum entanglement occurs)."