Serana is missing!

[PacMan71]

I was very with serana and i fast traveled to the Dawnguard fort.
When it finish loading Serana didn't spawn and the dawnguard attacked.
I can't reload and when i ask for a new follower they says that im with serana so I joined the companions beacuse theres a quest that Farkas must be your follower and it forces to your follower to leave.

Now serana dosen't spawn in her castle.

 

[Naginata]

Serana can get really buggy. She has disappeared on me several times. I just do several missions and ignore the issue for a while, then go check in and see if she is there. Sometimes you'll find her in a random location. She has lots of issues

 

[PacMan71]

 

[Equilibrium Evo]

I had this too,just press T to wait for couple hours and she will eventually be back.