Same problem. I use a collectionview and a timer to become an autoplaying banner. When there two banners appear in a view and scroll automatically with a short time lag, the [collectionview scrollToItemAtIndexPath:atScrollPosition:UICollectionViewScrollPositionCenteredHorizontally:animated:YES] method has no animation but flashes to the next item, sometimes one banner also stops at a wrong position, which I found appeared on iPhone 13 pro, but not appeared on 12 pro，xr，8，etc.