My machine was working fine and then I change the needle and now the threads will not make a stitch. I sew over the fabric and see the needle with top thread going through the fabric, but it doesn't pick up the bobbin thread and make a stitch. I have inserted another needle, but same problem exists. I have checked and the needle is inserted correctly, the machine is threaded correctly and I have played around with the bobbin and top thread tensions, but nothing works! Help please!
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