Repeater displays 5 items no matter what I set it to

I want to have a Repeater in a fixed position on the page, displaying only one, randomly selected item from a Collection. The Repeater is connected to a Dataset from which it pulls an image at random from the Collection, via this code:

import wixData from ‘wix-data’ ;

$w . onReady ( function () {
$w ( “#dataset1” ). onReady (() => {
wixData . query ( “homepage-sleeves” )
. find ()
. then (( result ) => {
const shuffledArray = shuffleArray ( result.items );
$w ( ‘#repeater1’ ). data = shuffledArray ;
})
. catch (( err ) => {
let errorMsg = err ;
});
});
});

function getRandomIndex ( min , max ) {
return Math . round ( Math . random () * ( max - min ) + min );
}

function shuffleArray ( dataArray ) {

**for**  ( let  i  =  dataArray.length  -  1 ;  i  >  0 ;  i --) { 
    let  index  =  getRandomIndex ( 0 ,  i ); 
    const  temp  =  dataArray[i ]; 
    dataArray[i ] =  dataArray[index ]; 
    dataArray[index ] =  temp ; 
} 

**return**  dataArray ; 

}

In the Editor, it correctly displays one image, but when previewing the page, 5 images are displayed, one on top of the other down the page. This is how it displays in the editor:

“Number of items to display” is set to 1:

And this is how it displays when saved and published: https://www.beerswpeers.com/

Any ideas how I can stop it from displaying more than 1 image? Thanks!