Skipped needle stitches on my m7 continental

Clare Newing

I’m hoping someone can help.
The needle stitches are looping intermittently on the back of the fabric. I have changed the needle several times. I use good needles I only use gutermann thread I’ve checked and triple checked my threading and I’ve checked the bobbin area for fluff……all to no avail…….HELP PLEASE

Join to automatically receive all group messages.