Stepper Motor Won't Change Direction

I have wired up my stepper motor, and I can get it to constantly turn, but when I enter in a code that makes it change direction, my motor won’t run and turn. It will make a sound like it is turning but I cannot see the motor turning. It worked yesterday, but I have not done anything different to my motor. I have the stepper motor #2267 and the motor driver carrier #2133


I am sorry you are having problems with your system. It would be helpful if you can post a video of the behavior you are seeing. Are you going from some high speed in one direction to the same speed in the other direction without stopping or doing any acceleration control? What is your power supply? Also, can you post your code and some pictures of your setup showing all connections?