Workspace - Audience disappearing after adding

Although the Audiences functionality in the App is great, I am having some problems in my environment that I would like to discuss in this forum in case anyone else is having problems.

I have created a new Audience in the App of a pro workspace. I have added 35 users (who have no permissions to enter the workspace, only the app). When I publish the App with the dashboards I want to include in the Audience groups, the last one I have included disappears. Even if I wait or refresh the page, it doesn't reappear.

It could be great if any one support to resolve the issue.

Kind regards

Sachin.