The site level toggle "Allow users to share dashboards and filters with the public" is disabled.

This site level toggle controls whether any user on the Jira Cloud site can make dashboards or saved filters publicly accessible outside the site. If the toggle is disabled users will still be able to share filters with other people inside the site but they will not have the option to publish them to the public.

The global permission "Share dashboards and filters" is not granted to the users is unlikely because that permission governs sharing within the application and not whether public sharing is allowed at the site level. The fact that users can share inside the site but not publicly points to the site toggle instead.

The default user preference "Default sharing for filters and dashboards" is set to Private is not the main cause because that preference only controls the initial default when a user creates a filter or dashboard. Users can change the sharing level after creation if site settings permit public sharing.

Users do not have the global permission "Manage group filter subscriptions" is incorrect because that permission relates to managing subscriptions to filters for groups and does not affect the ability to publish filters or dashboards publicly.

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