Extra PC characters being added for guest player

I just started a multiplayer session with a friend, and for some reason she has extra Player Characters showing up that she didn't select to play on her screen (these don't show up on my end as the host, so I can't kick them). This seems to be causing issues with Franz not realizing that her character is a Player Character, and not a NPC.

This is what she sees on her party screen:

As a test, we tried to start a new campaign, and somehow it got even worse:

As I'm in the bug report menu, I'm not sure if this is the campaign ID, but this is what's up in the URL: 76cf2382-02e6-4154-9e9f-4187425fc14b

How can we get rid of the multiple ghosts of Arilyn Heren, so poor Vasalor Voso can continue his adventure without being posessed by Franz?

UPDATE: As I was writing the bug report, somehow our new campaign test infected the campaign with the ghosts of Arilyn Heren. I have been given this screenshot of what my poor friend is seeing (again, I as the host am not seeing anything. She said apparently it's showing up normal on her phone)

We're having a good laugh about it, but if we can somehow get a solution, that'd be good. Thanks!