MediaDescriptionAdapter don't work

Please tell me, I'm using the media3 library version 1.1.1 to play mp3 files. To display the notification, I use the PlayerNotificationManager, into which, when creating, I pass the MediaDescriptionAdapter using the setMediaDescriptionAdapter method with the implementation of all methods.

For each media item, I manually specify its MetaData using the setMediaMetadata method of the media item builder. Everything works correctly as long as I have 1 media item, but as soon as there are more than one item, the MetaData of the file itself is displayed in the notification, and not the one that I skipped, although when debugging I get into the MediaDescriptionAdapter methods and return the correct values, but the notification still displays its meta information. Exploring the Internet, I saw a solution to use a MediaSessionConnector to stream MetaData for each item in streaming, but in Media3 this will not work. Please tell me what I'm doing wrong and is there a solution for my case?