AHA! Upon further investigation I discovered that #1 did not have the ‘show email address’ or the ‘receive email through site’ boxes checked (probably the former was the one that affected the members page.)
It was apparently only coincidence about the 1 and 11 and 17 and 7, because they happened to be next on the list.
I had substituted the %% if_email %% variable for the %% if_email_as_link %% variable. The problem seems to be that instead of showing no email address if the box is not checked it shows the previous entry’s address.
My solution was to remove the choice of making your email public or not (commented it out in edit profile page and checking everyone’s for them). I have a small group and they did not want to use the site email form.
Thanks—
mgk