Thank you for your answer,  it turns out that bundles are updated at the last time the node was started as primary. So all the bundles are syncing but you can't see them until you switch between the two authors' nodes.

Hello everyone, We need help to understand if TarMK synchronisation process is working correctly between the primary node Author and the standby node Author.Our checks show that the process is current and up-to-date.However, upon comparing the bundles of the primary node and the bundles of the stand...