I've been using a 1Password Family account for ages, I just found out that you can't add two accounts from the same Family to the same app, why is that? I understand that you wouldn't really want multiple people adding their accounts to the same application, but I don't think it should be locked out entirely, there are some poweruser scenarios where using two accounts yourself (from the 5 accounts available in a Family) on the one application makes sense.
"A member from has already been added to 1Password.
You cannot add two or more accounts from the same Family or Team account."
1Password Version: 7.6.785
Extension Version: Not Provided
OS Version: Windows 10
Sync Type: Not Provided