Post-op dual plane round implants - why is my breast a different shape?

Post breast augmentation, dual pane round implants. I’ve notice when I’m bending over that one implant pokes out the side whilst the other is normal. I took a photo while bending from below for reference. Ultrasound says no rupture. Why is one breast sitting different to the other and how can it be fixed? When standing normally they look similar except the one that pokes out feels noticeably heavier and I can feel the implant more than the other.