Hi,

I am currently experiencing this issue on Fallout 4 for PS4
I have completed a large portion of the game with Piper as my companion, and romanced her.
After this I proceed to swap my companions and send Piper to The Castle.
Now I cannot find her. I have searched every part of the castle, waited 24 hours and followed instructions from the forums such as visiting Valentines place and her own place and I have no further quests that involve Piper.
Due to this I decided to visit every settlement I have and search to no avail, I also put bells in the settlements and she never appears.
I am unable to load a previous save as the only other save I have is from the very beginning of the story.
I have also spent many more hours of game time and my time travelling and searching all the cities and have also searched locations where I previously left her.
Please help if there is any solution to getting Piper back as I would not be willing to reload the whole game.

Many thanks,

Leon