Why do I have zero duration TEAMS recordings in Supervisor?

In TEAMS under calls the calls shows a short duration,
but in Supervisor the recording has a zero duration.

How is this possible?

Supervisor will only have a recording for playback if there is audio.

If there is an attempted setup of a call and the call doesn’t go through
you may get a recording of the setup of the call with no audio in the recording.

In Supervisor you will just see a straight line on the audio graph.

To exclude short recordings from the supervisor search you can use the DURATION feature.

The result only shows recordings with a duration of your own minimum duration value configured.
For more details on this search option,
you can see the YouTube Instructional Video – I skipped to the duration setting:
How to Search on AMETHYST2 - YouTube