On my Morrowind playing, whenever there's a door behind me and I switch to third person game play, I see right through it. If there's a console command, let me know and I'd greatly appreciate it of course.
Um...for some reason I like to put my magicka and health, a couple statistics from 1000 to the billions. Don't ask me why, I just for some reason have a blast playing that way a lot more than playing it normally.
Course I tried searching the web and I am continuously doing so and even tried a new fresh game with absolutely normal stats and the door issue in 3rd person is still there.