Can you check if everything for SmartEdit integration is done in Composable Storefront?https://help.sap.com/docs/SAP_COMMERCE_COMPOSABLE_STOREFRONT/962112809f9a48f9b36aa05b208b3731/266db66bf8a7423193f30b5cacccd7ce.html?locale=en-US
OOTB configuration for content catalog sync jobs has Media and MediaContainer as root types.If you do not want to lose your changes, then you should not change in online catalog version.
Sync jobs for content catalogs are typically created with removeMissingItems=true:-> Elements that only exist in the target catalog version are automatically removed.
