Ive been sewing all morning using a zig zag stitch on my Brother XR-7700 and now the stitch isnt working properly.
I have reset the tension, reset the machine, re-threaded it, and I am out of ideas of what to do. Ive taken a picture and used different thread colors to show the problem. The top thread is red and the bobbin thread on the bottom is black.
The top thread hardly zig zags at all and is just straight. If I pull on the top (red) thread, the whole thing comes undone.
What can I do?