Hi,I'm having problem with downloading a thumbnail from the media library -@ Thumbnalil tab for video files, after update Kentico from version 12 to 13. In 12 when I clicked URL on this page it ope...

I created a new instance of Kentico 13 Admin site and API and pointed the new apps to the old database. I ran the upgrade.sql script that came with the update app on the db and everything works exc...