Were these new or used? Shell cordovan? If new shell, that may be normal waxes coming to the surface as you wear them. A light buffing with a slightly damp soft cloth followed by a brushing with a horse hair brush (after waiting several minutes for them to be dry), followed by a buff with a dry cloth should help a lot.
And welcome to the forum.
the shoes were used. he sold them for shell cordovan. have used horse hair brush, did light wax, let them sit for a day, but same thing. after one day, they look like the loose some white stuff - see the picture.