[BobbyWibowo]

Links:


Those links lead to a PHP script which will then return a redirect to sh.st links. With JDownloader2 however, it will instead mark the shst.php page as Offline.

[BobbyWibowo]

More links:
These will instead become "unknownFileName" and Offline.

[Jiaz]

JDownloader doesn't support this *host* by a plugin and therefore the generic http plugin for direct downloads will take over because of the known file extension .mkv
As the response doesn't contain the file but html, the file is marked as offline.
You can teach JDownloader by adding the following linkcrawler rule in Settings-Advanced Settings-LinkCrawler.linkcrawlerrules

[ {
  "pattern" : "(?i)https?://data\\.project-gxs\\.com/shst\\.php.+",
  "rule" : "FOLLOWREDIRECT"
} ]

wait for next plugin update as an update for shst site is required