Gapless Music Playback Issue

I feel like this issue began with iOS 13, and the update to iOS 13.1.1 did not address it. iOS 13 appears to not recognize when an album should have gapless playback. It appears to only have this issue with the MP3 files I’ve synced to my iPhone, but .m4a files playback just fine. These are the same MP3 files I’ve had no issue with in the past on an iPhone, and they play correctly in the iTunes Library I’m syncing them from. I don’t have the music synced to any other iOS 13 device to know whether or not it occurs with those, but the issue doesn’t happen with an iPod Nano I have a lot of it synced to. This also does not seem to be specific to the built-in Music app as I’ve downloaded a few other music apps and happens with those as well.