One member has been photographed in a native american headdress for a magazine and apologized for it.BTS didn't dress up in Native American attire it was Nazi attire.
Two of the members apparently for Halloween other something dressed up as Hitler and a Jewish prisoner.
Another wore a hat in a photoshoot that was picked by the stylist that rival band's stans photo shopped a swastika onto pretty notoriously. He still apologized.
The Halloween costumes were Charlie Chaplin and an old timey prisoner outfit, although as far as rumors go, that one is admittedly hilarious.
For a play by play of every scandal BTS has ever had, read this:
