1. Confirm the change saved in Back Office — reopen the product and check.
  2. Wait a moment. Changes reach devices shortly after saving.
  3. Check that device is online.
  4. Restart the app on that device.

If it only affects one device

The problem is that device's connection, not your menu.

If it affects every device

Reopen the product in Back Office and confirm the change is actually saved before contacting support.