Recording scheduled in tvheadend web interface not seen in recordings

  • A recording (1) started or scheduled from the tvheadend client works and is listed in TV/Recordings.
    A recording (2) started or scheduled from the tvheadend web interface also works but is not listed in recordings, although the files from both recording (1) and (2) are present in the folder /storage/recordings.

    Why is this and what can I do about it?

    Background: I simply want to be able to schedule recordings from a web intrface...