I recently installed a new circuit. The wiring runs to a 2 gang box with 2 switches where the hot wire is shared via pigtail. One of the switches runs to 3 consecutive fixtures (recessed lights) and the run ends in a receptacle (outlet). When I connect the black wire to the brass screws and the white lead to the silver screws and the ground to the ground screw and test this outlet, the polarization detector indicates that the hot and neutral wires are opposite. The light indicator shows correct polarization when/if I connect the black lead to the silver side and vice versa which I know should be wrong. Is the problem at the level of the switch where the hotwire is shared? Or how else could these 2 be opposite? Any suggestions greatly appreciated. Thank you.