Start with our pinned Sewing Assistant GPT for quick troubleshooting. If you’re still stuck after trying the first fix, post here and I’ll help. To get a fast diagnosis, include ALL of this: • Machine brand/model (or a clear photo of the front) • Fabric type (cotton/denim/knit/etc.) • Needle type/size + thread type (if known) • Stitch setting + stitch length • Clear photos of your stitches: TOP side + UNDER side. What have you already tried (re-threaded? new needle? reloaded bobbin?) Common issues welcome: birdnesting, looping, tension, skipped stitches, thread breaking, uneven seams, jammed bobbin. Comment with your info + photos and I’ll reply with the first fix to try..