Why would a sewing electrical device sew (feed) backwards?

it actually sews the contrary way, i checked the hypodermic and everything and can't figure out why
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Answers:    Most machines enjoy forward and reverse, could it be in the wrong position?

Motor running the wrong opening?

Machine timing?
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Is the reverse control stuck? Some machines have a passageway to reverse the feed to reinforce a stitch at the wrap up of a seam, and either that control is switched on, or the control or related instrument is stuck in some posture. Maybe try flipping it back and forth?