The interesting behaviour of the stepper

[Vadim]

I want to move stepper between two saving positions. But at first stepper moved some steps back and only after that stepper moved from one memorized position to next.

Who is  confront with that problem?

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stepper.setMaxSpeed(SPEED);
stepper.setAcceleration(ACCEL);
stepper.moveTo(savedPosA);
stepper.runToPosition();

/////////////////////////////////////////////  second version of the code

stepper.setAcceleration(0);  
stepper.runToNewPosition(stepper.currentPosition());

stepper.setMaxSpeed(SPEED);
stepper.setAcceleration(ACCEL);
stepper.runToNewPosition(savedPosA);

Both versions work equally.