- The ID of your dynamic dataset is → dynamicDataset ?
Try this one… (not tested).
$w.onReady(function () {
$w('#dynamicDataset').onReady(()=>{
let myItem = $w('#dynamicDataset').getCurrentItem();
let myVideo = myItem.videoField
if(myVideo){$w('#videoPlayer1').show('fade')}
else {$w('#videoPlayer1').hide('fade')}
});
});