When you add collaborators to a project or a contest entry the members are not automatically added.
We have an approval process in place to prevent people adding the wrong person by mistake.
When you publish a project with collaborators, they will be send a email asking them to approve the collaboration request. If they approve, their names will appear on the project page.
If members miss the email, they can also accept collaboration requests by adding
/collaborators to their profile url eg:
Once on this page, you will see a Collaboration Requests table.
2. Approve or Reject requests.