Thank goodness I have been using a practice sandwich!

I'm getting that clunking noise and major ... MAJOR ... globs of thread on the bottom.

I've done all the suggested steps ... rethread both top & bobbin; tension up, tension down; changed threads;

It is so frustrating!

Is there a CLASSIC reason for the giant loopy glob of a mess of thread on the back???

Oh, & it definitely is the TOP thread that is coming through making the mess.

Thanks for your help,
yarnball