OOh, someone, please help.
I have decided it is not the foot to the Brother because it works just fine. It rests just on the feed dog plate when the foot is lowered. The feed dogs are down. And the darning foot has the little arm that that goes over the screw which makes it hop up and down with the needle. So it works right and fits in just fine.
What happens is that it looks lovely on top but the bottom is a giant jumbled mess of thread. It is not bobbin thread it is spool thread on the bottom. I tried adjusting the tension and the same thing happens.
Any ideas what I should try next or what I'm doing wrong?
Tracy