Pressure wont release from right front wheel?

New rotor, pads, caliper and brake line. After brake seized and super heated. New caliper receives fluid but fluid can't return to reservoir. Other brakes seem fine. Hard pedal when the piston wont release pads on that wheel. Master cylinder seems okay and I would lose ability to build pressure if it was faulty. Yes, have only replaced one flexible brake hose. It is only occurring on the right front wheel which is the one that originally locked up for unknown reason. Caliper piston does release when I apply pressure and open the bleeder valve and it will release when I crack the line at the top of the flexible hose. Can faulty master cylinder prevent fluid coming back from just one front wheel because driver side functions normally? Thank you