You are using the Jive Solutions (JEP) Recent Content Tile. If some content is shared to the Space or Group where the tile is, the tile does not show the shared content. You would like to see shared content in this tile.
This is functioning as designed. An enhancement request has been raised for modifying the Jive API so that shared content can be made visible in the Recent Content Tile. You may follow the release notes at Release Schedule - Jive Cloud.
Please see the enhancement request: JIVESPECS-1431