This doesn’t seem to occur using the native file chooser from a non-JUCE app, so I’m not sure what is different, i.e. MP3 files are both shown and are selectable in non-JUCE apps.
Bumping this. Is this reproducible on your end? Any help appreciated.
myFileChooser("Select an audio file...", File(), "*.wav;*.mp3;*.aif")
This should be fixed here:
Perfect, thank you!