I just started a group for my colleagues and most of the invitations went off without a hitch, but for one member (who didn't have a zotero account and just made one) the invitation is not working.

I invited them to the group, and they joined, but on their end it says "invitation pending" and on my end it looks like they have not accepted the invitation yet.

Does anyone have any suggestions? I have already tried cancelling and re-sending the invitation.

Thanks!