Both your responses are good.

The ring will not seat properly unless run at full load momentarily, then idled for a bit, then full load again, back and forth. The ring will be fully seated in five (or ten maximum) minutes doing this. Ringed engines aren't like the tapered bore, or lapped piston engines. Each one has its best way of running in.

The ring needs pressure against the cylinder wall to seat, more pressure than just its natural spring. The combustion pressure gets behind the ring and pushes it out firmly, leading to its seating.

Full load gives it the seating pressure, then a momentary idle lets it cool a bit and get more oil on the rubbing face, then hit it again.

Once the ring has fully seated your problem should go away.

Bill.