Problems with video playback from RSS-feed/video podcast

Hey,
I’ve added a RSS-feed via Videos -> Files -> Add Videos. The content of the feed is shown correctly by Kodi, but Kodi is unable to playback the videos in the feed.
The feed’s URL as I found it on the website was: https://www.neo-magazin-royale.de/zdi/rss.xml so I changed it to rss://www.neo-magazin-royale.de/zdi/rss.xml

This might be a relevant part from the 01_KODI.log

Code:
10:55:17 346.504944 T:1963094016  NOTICE: DVDPlayer: Opening: http://www.zdf.de/ZDFmediathek/beitrag/video/
10:55:17 346.505066 T:1963094016 WARNING: CDVDMessageQueue(player)::Put MSGQ_NOT_INITIALIZED
10:55:17 346.505585 T:1796207520  NOTICE: Creating InputStream
10:55:18 347.950317 T:1796207520   ERROR: CCurlFile::Open failed with code 404 for http://www.zdf.de/ZDFmediathek/beitrag/video/
10:55:18 347.950470 T:1796207520   ERROR: Open - failed to open source <http://www.zdf.de/ZDFmediathek/beitrag/video/>
10:55:18 347.950531 T:1796207520   ERROR: CDVDPlayer::OpenInputStream - error opening [http://www.zdf.de/ZDFmediathek/beitrag/video/]
10:55:18 347.950562 T:1796207520  NOTICE: CDVDPlayer::OnExit()
10:55:18 347.951172 T:1963094016   ERROR: Playlist Player: skipping unplayable item: 0, path [http://www.zdf.de/ZDFmediathek/beitrag/video/]
10:55:18 347.962189 T:1963094016  NOTICE: CDVDPlayer::CloseFile()
10:55:18 347.962280 T:1963094016  NOTICE: DVDPlayer: waiting for threads to exit
10:55:18 347.962311 T:1963094016  NOTICE: DVDPlayer: finished waiting
10:55:18 347.962372 T:1963094016  NOTICE: CDVDPlayer::CloseFile()
10:55:18 347.962402 T:1963094016  NOTICE: DVDPlayer: waiting for threads to exit
10:55:18 347.962433 T:1963094016  NOTICE: DVDPlayer: finished waiting

I’ve posted the complete log-file here: http://pastebin.com/eZbt6j18

Any idea why Kodi doesn’t play the videos?