I followed advice from Board members regarding monofilament thread after having problems with the thread skipping stitches, breaking and tangling.
Lower top tension, put your spool of thread in a container behind your machine and sew more slowly.
I also found the thread was jumping out of the thread/tension guides and then tightening until it snapped. I needed to frequently check that it was running smoothly through all guides and not twisting or skipping guides. I also use cotton in the bobbin.
Do a Board Search on monofilament or invisible thread and you will find some information.