Only 5 family members in total, but still cannot add family members to my Family Sharing group
Recently I deleted an unused Apple account to remove it from Family Sharing, in order to add a different family member to the sharing. However, I can't add family member to family sharing even though I now only have total 5 members in the group. On the iPhone the + sign to add members is greyed out, and on the Mac, while I can click the + to add members, after I click on invite nothing happens.
Is this some hidden time counter to allow me to add again a member? The deleted account is confirmed to have been deleted - trying to login with the user ID shows a login error of person not found.
What could be the issue?
iPhone 13 Pro, iOS 15