Pretty irritating bug where I select the "talk" option with any companion and nothing happens; I can select the "cancel", "follow", and "trade" options and those work. The only companion I can select the "talk" option is dogmeat, it seems dogmeat is the only companion which is fully working. At the time when the bug started I had Nick Valentine as my follower, and the other thing I have noticed is those companions will also not fast travel with me. I guess to sum up, I can't "talk" to the companions and they wont fast travel with me.... Unless if there are earlier saves I can resort to that I dont know about, currently my earliest save in My Documents folder still has this issue. Thanks for the help, it is greatly appreciated.

P.S. I did find on other forums where people found this bug to happen if they are stuck in a dialogue with a different npc which they left without finishing the dialogue. I have considered this and went back to the different npcs I may have been stuck in dialogue with but unfortunately nothing has worked, I have no active quests as well. thanks.

Update on this bug, I have narrowed the issue down to Nick Valentine. I think what happened is I am bugged somehow with his dialogue., I checked his affinity level using the console and I found that it is 382, whereas allot of the time dialogue events trigger every 250 or so. My guess is I am stuck in a dialogue with his 250 event which I don't remember ever getting, I still can't select the talk option with my other companions but I believe this is because of this dialogue issue with Nick. The reason I narrowed it down to him is because Nick wont fast travel with me, I can't trade with him but I can still trade with my other companions. Thanks for your help on this.