Remember Position Inquiry for Infinite Scroll.

import {local} from 'wix-storage';

$w.onReady( () => {
  $w("#items").onReady( () => {
      console.log(local.getItem("key"));
      'setCurrentPageIndex would go here...
  } );
} );

export function boxL_viewportEnter(event) {
   $w("#items").loadMore()
   .then(()=>{
      let currentItemIndex = $w("#items").getCurrentItemIndex();
      let currentPageIndex = $w("#items").getCurrentPageIndex();
      
      console.log(currentItemIndex)
      console.log(currentPageIndex)
      
      local.setItem("ItemIndex", currentItemIndex);
      local.setItem("PageIndex", currentPageIndex);
   })
}

Which results do you get in CONSOLE ?