Folder search fonctionnality not recursive

Hello,

After upgrading our WebCenter Content from UCM 11g to UCM 12c, we noticed a change in the folder search fonctionnality.

In version 11g, when positionned in a parent folder and search for a sub folder by his name, behavior was recursive. So if the searched sub folder was "nested" in a prior sub folder of the parent folder, it was being showned in the results.

In version 12c, behavior is not recursive anymore, only sub folder of the current parent folder are being returned in the results.

Have we missed something in our migration process or lost a specific configuration or set up between our 2 versions ?