I can't finish the "Defend the castle"-mission. It's all done, the Brotherhood has been wiped out, but I can't do the final part: "speak to Ronnie Shaw". As soon as I get within range of her my character says "I just want to trade a few things" or "I'm looking for weapons", without me pushing any buttons. The dialogue won't appear, I can only trade or barter with her.

On the Fallout Wikia-page page it says: It is a possibility that Ronnie Shaw's proper dialogue will not appear to end the quest; the only options that will appear are trading and merchant dialogue, leaving the quest unbeatable. There is no known fix for this bug. (it is possible to instantly end the quest by typing the setstage console command: SetStage 000bdb04 450)

I play on XBox one, is there really no way to go on from here?