Innov-is F420 FAQs & Troubleshooting Innov-is F420 Not your product? Sort by Updated Date Popularity 3 Results 1. 03/12/2024 Stitches are skipped 2. 02/22/2024 Fabric puckers 3. 12/26/2016 Incorrect thread tension Sewing (Utility Stitches) FAQs & Troubleshooting