So, I defeated BoS, but everytime I fast travel back to Sanctuary, Palladin Danse shows up and attacks me and my current follower. I can't target him with VATS and no weapons or grenades do any damage to him. If I hide long enough, he eventually walks away and I can go about my business. Any idea how to fix this?

EDIT: This is on xbox one

That is correct - I really despise, loathe these invincible NPC'S because they might have some slight importance in a story or mission.

Bethesda likes to hold your hand and tell you how to play.

So, even though I have already destroyed the BoS, there will be a future mission to deal with Palladin Danse?

Silly question, but did you get to the point in the BoS storyline where it was discovered that Paladin Danse is a synth?

Welp, I didn't know that. Guess I don't have to do a BoS playthrough now...

Thanks for the spoiler... or are you just joking?

He's a toy, he just THINKS he's a real space ranger.

oof

You still do, it's all kinds of awesome. They are utter tossers though. As a slight spoiler Cait really likes them.

Well that sounds like a major bug. He is not invincible, as normally you can hurt him enough to force him down same as your companion does when they are near death. There is a similar bug with another character who wanders about when she is dead.

I got caught for stealing, and Deacon becomes hostile, I shot and killed him at the cost of failing all of Railroad quests. Some people reported that they can't kill Deacon. I'm not sure when or how they become non-essential, but it may be dependent on how far along on the quest you are. I can kill Danse just fine when I accidentally teleported to the Pwyden with him.

There's probably some script in some quest somewhere that removes the essential tag on these initially unkillable NPCs. Miss the proper stage at the proper time and.;.. Poof, your stuck with an unkillable enemy. It's so easily fixed on PC, not so much on console. Consoles sure need the console.