Eric, it appears you have your answer, so I will leave you with a flower - now you have 71!!
Seems you have a really nice answer from mops. good luck if this is happening to you. but I understand it was something you were reading. Flowers to you
You seem to have been given the answer. It's great that there are such helpful people on this site. *4U
I don't have that model of brothers but 2 of my friends do and They haven't had that problem naybe it is just an adjustment needed .
I think lbrow is right, the thread starts to fray and half of strands bunch up, leaving a very thin thread that eventual breaks. Very frustrating. Is often a tension problem or a faulty needle with too sharp edges. And sometimes it's due too some rough part of the machine.
Eric I'm not familiar with the term thead stripping & I wonder if they r talking about thread shredding while you're embroidering. this I do know because some brnds I have used n past would do just that n middle of design thread starts separating into shreds & leaves u with 1 or 2 strands.still n needle