Hi! Have just received the Oyster 3 bundle for baby due in a few weeks. It’s lovely but I just wanted to ask if anybody had any issues with the 2 D rings on the pushchair that are attached to the back of the seat and protrude through 2 slits and attach to a strap that goes around the baby’s middle. It looks to me that these rings might stick into the baby’s back and be uncomfortable? Any thoughts much appreciated.