A button or feature is not working in the new web UI

Reload the page with a hard refresh (Ctrl+Shift+R, or Cmd+Shift+R on Mac) so the browser loads the latest version of the UI. Use an up-to-date Chrome browser.
If a feature is missing or not working, you can use the classic interface meanwhile: open Settings (1) and turn on Switch to legacy UI (2).
Report the issue: click the Help icon (3), then Contact support (4) and Email support@pisignage.com. Mention the page, the steps, a screenshot, and the Server version and UI version shown under Settings (5). For a screen, add its Player ID.

New interface: Settings, Switch to legacy UI, Help, Contact support, versions