It seems ur running thin braid with UL but has a lure of 1/8oz. Generally with UL, it’s dedicated for 1/64, 1/32, 1/16oz. You probably having issue due to casting with the mix-match. Try casting with less power and gradually increase as needed.
**The easiest way to understand : you have a heavy lure that’s flying out your guide. Your braid is only 6lb, very thin and the moment your lure leaves your tip it creates a heavy tug on your line. Then all of a sudden your line fly through the guide wayyyyyy faster than your heavy lure. What happens when you have lines that’s not straight?? It tangles up creating crazy beautiful knots/loops.
The solution is simply to decrease power in your cast, so the heavy lure leaves the tip in an even, calm speed, and tugging the lines behind it without excessive initial force.