[GeoNetwork-devel] Thumbnail not shown

Dear list,

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My metadata thumbnails upload correctly into the /var/lib/tomcat7/webapps/geonetwork/WEB-INF/data/data/metadata_data …00000-00099/<number>/public folders and the owner is tomcat6 but they don’t load in the metadata page. If I use an image with url it properly shows. I wonder what is the problem. I am using geonetwork 2.10.4 on Ubuntu. 

Thank you,

EJ