So I finally figured it out. Turns out the stepmotor driver module is NOT compatible with Core2. Upsetting because on the page on the M5Stack store it says: "StepMotor Driver is adapted to M5 core series..." That's core SERIES, not just Core Basic. Fortunately I had a Core Basic and could test it. Works just fine.
Please let me know if I'm wrong about the Core2 compatibility. If it is let me know what I need to do to get it to work with Core2. Thanks.