Problem with fading animation

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2

Well, you haven’t explained what you mean by “wonky”, but one thing I noticed is that you haven’t handled the Promise returned by setCurrentItemIndex() .

Something like this might unwonkify the fade:

$w("#dataset1").setCurrentItemIndex(idx)
    .then( () => {
        console.log("Done setting current item");
        $w("#group1").show("fade", fadeOptions);
   } );