Open Visibility
Under Materials, select Visibility. The page lists each loop and whether it is currently visible to pupils at your school.

Release the next loop
Change the setting for the loop you want to release, then check its visible state. Treat this as a live classroom setting: released loops can appear in pupil accounts straight away.
Keep the journey clear
Release content in step with your teaching plan. If pupils say a loop is locked, check Visibility before troubleshooting their accounts.