Baldur’s Gate 3 bug? Co-op characters are being locked to the host’s party
A Baldur's Gate 3 bug where co-op characters are being locked to the host's party after their friends joined their game mid-campaign is discussed a lot on forums since it breaks these players' save files. Here are the details you need to know about this issue so you know exactly how to avoid it and what to do should it happen to you.