A big question I have for people experiencing the issue is what type of pitching are you using? And if you aim higher or more in the zone is it still dropping way out or way away so that it bounces away in the dirt? I rarely have this problem using meter pitching. I just aim my curveballs barely out of the zone, and my sliders barely out of the zone and it's rare any go far enough to get away and be wild pitches.
Also what preview are you using when selecting pitches, if you don't have it set to show where the pitch is ending up and instead it is showing where the pitch starts that could be your problem.