Strange problem/query, but my Singer 3223 has decided to sew a small(ish) zig-zag style pattern--even when the stitch dial is set to the straight stitch.
For clarity, the stitches in the zig zag are uniform distance from each other and consistent, they are just obviously zigzagging and not straight. I have tried adjusting tension, re-threading machine, all of that, but the problem persists.
Does anyone know what could be causing this, and if so, is it something that can be fixed?