I've been playing Fallout 4 for quite a bit and I've stumbled upon a annoying problem. So let me take it from the start: I went to the Castle because I wanted to capture the base, so I didn't know about the Taking Independence quest. After I beat the queen, I left and did some work on the base later.
After that I did about 10 hours of exploring and got some good stuff. I then saw the Taking Independence quest and talked to Preston about it and said I already cleared it. So it glitched and brought the minuteman to the base and the objective was to clear the courtyard which I already have done so now they are just standing there doing nothing.
If you can tell me how to fix it, thank you very much. I play on Xbox One.