Is there anything special about the secondary configuration that we need to be aware of?
Release: Component: AEIDSH
Since you are using only Primary database and is configured appropriately, no additional steps are required for the saved changes to reflect correctly on the Web UI launched from Primary and Secondary iDash servers.
Please try to update an existing report or SLA definition from the Web UI and verify if these changes reflect for the same user logged on to Web UI from other iDash server. If it doesn’t then please refresh the Web page or try to login again.