Randomly generate maze section

Hello. I am trying to make a maze that adds a randomly chosen child actor components with transform randomly picked from an array of eight. I set it up so that once a setting was chosen from the array, the chosen index is removed. The problem I’ve been having is that it spawns the pieces in the removed areas and in an area I didn’t have an array for, 0, 0, 0. I have ideas of why it’s doing this but I don’t know of any solutions.