In order to correct the error proceed as follows:
- Call up PARTlinkManager -> Extras menu -> Update Manager [Update manager]. 
- When a catalog node is opened, the display is automatically refreshed and at the catalog folder the icon  is displayed. is displayed.
- Click on Add update to database [Add catalog updates to database] in the context menu. 
- After successful update you receive a confirmation. 
- Now the catalog is displayed with "normal" folder symbol or with the respective symbols which signalize changes. 



