For support issues please visit https://jira.deiser.com/support
What's next? Check our backlog and vote the ideas here: https://trello.com/b/kxrEGuIW/profields-public-backlog
The only thing that prevents someone to see the projects in Profields is to have "Browse projects" permissions.
We have detected that Atlassian is making changes on this topic, to check the permissions of your users and be sure that they are in the right group and role go to your Default Permissions Scheme and check who has "Browse Projects" permissions.
Then check in the Projects if those users/groups are included in the right roles.