I am trying to return to Shalidor's Maze in the Labyrinthian subsection in order to get the 3rd word in the Dismay shout. I had already been through the maze and completed the quest associated with this location but missed the shout word so I wanted to go back and get it. I used the console command "coc labyrinthianmaze" and I was moved to the maze area. However, the entire area is missing many floors, walls, and architectural features. The word wall is there but there is nowhere to stand in front of it.
How do I make these missing components reappear?

Thanks.