Loops appear on the surface of the fabric when embroidering

The thread tension is incorrectly set.

Adjust the thread tension.
Refer to How do I adjust thread tension for embroidering?
Under some conditions, based on the type of fabric, stabilizer, or thread being used, there may be some looping in the upper thread.

In this case, attach the included embroidery needle plate cover to the needle plate.
Refer to Using the embroidery needle plate cover.
The combination of the bobbin case and bobbin thread is incorrect.

Change the bobbin case or bobbin thread so that the correct combination is used.

FAQs & Troubleshooting