Agenda Template Showing Members

We, at #5585612, had a similar problem with our September 26 meeting agenda. The first speaker in the agenda had released herself from the role. Yet her name kept reappearing. We would remove her from the role and later the name would show up again. Interestingly, the speaker chose to do her speech after all. Maybe the problem gave her a bit of a push? 

It would be useful to know how we can avoid/manage future occurrences of this problem.

Thank you.
Stéphane