My IMessage on macbook keeps making new group conversations
Today, my Macbook started randomly creating a new conversation from a
group chat that I have had for years. But the new version has my number
listed, and any messages I send through it are not received by the rest
of the group. But if I use the old group, I can send messages, but I
can't receive any new messages through the old chat, only the new one
that keeps being created every time I delete it. How do I get this to
stop?
Note: I have already tried completely signing out from my apple account and that has not worked
MacBook Pro 13″, macOS 14.6