Reading mediaPlayerCreate.MediaPlayer.PlaybackSession.Position gives error when playback is paused

[Diolk]

Go a very strang bug with the MediaPlayer control. Application in C#/UWP.
Had code that worked perfectly for 2 years in production. Ran on Win10.
Upgraded tot Win11. Got an error in the code as described below:

I have a KeyUp event handler that check for hitting the spacebar. The spacebar acts as a toggle. Hitting it will toggle between play and pause of the MediaPlayer control. Control is display with manual controls (play/forward etc.) on it.
File is loaded in the control. Manual controls work fine.
Hitting space bar gives an error that the control displays on screen: cannot decode stream.
That in itself cannot be correct, because with manual control I can play the mp3 file.

I simplified the code to reproduce the bug. In the event handler I have this snipped.
if (mediaPlayerCreate.MediaPlayer.PlaybackSession.PlaybackState != MediaPlaybackState.Playing)
{
TimeSpan currentMediaPlayerPosition = mediaPlayerCreate.MediaPlayer.PlaybackSession.Position;
mediaPlayerCreate.MediaPlayer.Play();
}

this code will give the error.
Removing the line:
TimeSpan currentMediaPlayerPosition = mediaPlayerCreate.MediaPlayer.PlaybackSession.Position;
yields working code. (the Position is read a few ms later in the code, apparently it isn't a problem any more then)

In my opinion when the mediaplayer is paused it should be possible to read the position of the player, clearly doesn't work.

Target version: Windows 11 (10.0; Build 22000)
Min version: Windows 10, version 1809 (10.0; Build 17763)

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Document Details

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• ID: a96fc0f6-3226-9c44-d5ff-b869d0f4b441
• Version Independent ID: b144f7b7-e19f-c924-323c-03b59a52a540
• Content: MediaPlaybackSession.Position Property (Windows.Media.Playback) - Windows UWP applications
• Content Source: winrt-api-build/xml/Windows.Media.Playback/MediaPlaybackSession.xml
• Product: uwp
• Technology: winrt-reference
• GitHub Login: @drewbatgit
• Microsoft Alias: drewbat