Any guidance would be appreciated. My husband just bought a new Consew and after first time sewing it stopped. Had to ship it back to the company just got it back and same issue. He threads the machine and brings the needle down to bring up the thread from bottom and it becomes tangled. Then it gets a small piece inside and due to safety feature stops working. The company tested his machine before it was sent back and said everything was fine. This is all new to us and trying to learn as we go but it's becoming very frustrating as he just wants to sew and not spend another $145 in shipping cost. We have tried different bobbins, different thread. We are at a loss. Thank you.