Attends, c'est pas tout. Y'a aussi des blagues avec les instances "privées" :

https://www.reddit.com/r/fo76/comments/dmfxzd/report_issues_occurring_for_players_using_private/ :
There are a few issues cropping up here. Fallout 1st players are finding that a “newly created” world they might be heading into is not actually new at all. Players are reporting dead NPCs and looted areas when they get there, implying that these are not actually new instances, but instead re-used old instances masquerading as brand new private worlds.

The “private” aspect is up for debate too. Players with big friends lists, ie. merchants who sell players goods in the game, are finding that they can’t prevent people from joining their private servers where they just want to relax and play by themselves or with a few friends. Without some sort of “invisible” mode, other players can see your instance and join it.