QML SwipeView does not show other index item.

[W.Y.Kim]

I made Swipeview for selecting category of contents,
and When I enter to SwipeView I should show current category Item.

But there is some strange things,
If I selecte the last item and re-enter to SwipeView qml, then the before last item is not shown.
ex. last item index is five, then fourth index item is now shown on left side.

simulary, when I select first item, then It show second item properly.

In SwipeView is there a cache buffer for display items like ListView property?
Please refer to My QML codes

Item{

Component.Oncomplete{

swip.removeItem(3)
...
... // Remove Items according to condtion of Category

}

SwipeView{
id : swip
currentIndex : class.lastCategory // refer for C++ class.

Item{ //first
}
Item{ //second
}
Item{ //third
}
Item{ //fourth
}
Item{ //fifth
}
}