Sharepoint Granular backup ends with status code 1
ERR - Unable to obtain image list. Confirm this client has access to images on server 'MasterServer' for client 'Webserver'
ERR - Refer to the 'Configuring restores for multiple SharePoint Server hosts' section of the SharePoint Administrators Guide for more information
If web server and database server are separate, you must configure “Distrubuted Application Restore Mapping” settings.