What else could be my problem with my brakes?

Sounds like you still have air in the brake lines, you may have to bleed the entire system, start with the farthest first. As this has ABS try bleeding with the key turned on, and make sure you check the antilock motor assembly for a bleeder also.

If the master cylinder was dry then you may have to bleed that separate ( bench bleed ) . They make fittings to go on the master to do this and things need to be tight so that no air can get inside the fittings or tube . I open the bleeder and stick a piece of hose on it going up ward so that air will rise and not go back in . Depress the peddle only a few inches , nice and easy . You don't need a helper this way and you avoid all the " open , close " back and forth . For a completely empty line I disconnect it from the master , put a piece of hose on it and use a bulb syringe to load it up . Yes . all this is a P.I.T.A.