Ideas
AudioConfigurationResource: FD04E3BE-00000000-E77652442C7A8850
AudioConfigurationResource: FD04E3BE-00000000-78C9ACC7D7B1B1CA
These are the two songs. They are base game. By nature of Base Game songs being weighted more heavily to play than Pack songs, and these two songs sounding completely different from Base Game songs, they play more often than other not-base-game-coded music, and they stick out severely due to there being two of them.
2x songs with unique sound added into the limited number base game song list that plays more often than any other music = far more frequent playing of "odd" sounding music
It's not a bug explicitly at this point but it's a design consideration that might warrant some looking into, and this is the information required to understand it