The%20answer%20is%20-%20Vanish%20mode%20is%20the%20latest%20feature%20of%20Instagram.

This%20feature%20automatically%20disappears%20the%20messages%20after%20they%20are%20seen%20and%20you%20leave%20the%20chat%20when%20the%20Vanish%20mode%20is%20turned%20on.%20You%20have%20to%20manually%20turn%20on%20the%20Vanish%20mode.

%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23Instagram%22%20data-user-id%3D%22zV6BbWgjJdp2%22%20href%3D%22/topic/instagram%22%3E%23Instagram%3C/a%3E%20%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23Feature%22%20data-user-id%3D%22AFTUY4Fto62e%22%20href%3D%22/topic/feature%22%3E%23Feature%3C/a%3E%20%3Ca%20class%3D%22mention%22%20data-mention%3D%22%23update%22%20data-user-id%3D%229Z3QgmBUQlkD%22%20href%3D%22/topic/update%22%3E%23update%3C/a%3E%26nbsp%3B