Laravel 5.4 - Track can't pass mime validation

I'm confusing because some .mp3 files can't pass my validation:

 mimes:mpga

var_dump of this files looks the same with files that successfuly passed validation, they all have the same mimeType -mimeType: "audio/mp3"
I've tryed to extend validation rule but that's doesn't work: mimes:mpga,audio/mpeg,audio/mp3

Here is the track that can't pass http://ift.tt/2y57Pyi

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