Windows 7 media player album art not updating
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Bring Windows Media Player open again and right-click one of the tracks in your album. Select the image to be the Front Cover art, then apply/close the dialog box.
Windows Media Player 12 is the most recent version of Windows Media Player.
It was released on July 22, 2009 along with Windows 7 and has not been made available for previous versions of Windows nor has it been updated since for Windows 8, Windows 8.1 and Windows 10. Being a component of Windows, Media Player shows the same version number as that of the version Windows with which it was included.
The default file formats are Windows Media Video (WMV), Windows Media Audio (WMA), and Advanced Systems Format (ASF), and its own XML based playlist format called Windows Playlist (WPL).
The player is also able to utilize a digital rights management service in the form of Windows Media DRM.
I even confirmed this by archiving the MP3 and opening on another computer. They are extension-less files, so it is impossible to tell which one is the offending one, so I just deleted them all.