knot may have slipped with braided or if knot was there and lure was gone,your line got between your split ring and by by lure,that why I take the split ring off and tie the loop knot,plus the loop knot lets the pimple do its thing,I'll try to explain,the loop knot,first put end of line through eye of lure,pull about 6 inches of line through,pin both lines together,take lure in left hand and pinch both lines with right hand,make loop between lure and pinched end,pass lure two time through loop,wet line with your mouth and pull both ends,lure in left line in right, with a little practice,you can make the size of loop as small as you want snip tag end and you the loop knot,just make sure to go twice through the loop if you go once the knot will not hold and pull out,this knot is very good and give certain lures alot of freedom to do there thing.Hope this helps with the loop knot,The Captain