i made/rebuild an iphone mockup scroll animation shwocasing an app. It works more or less fine on all breakpoints. However the 1920x1080 resolution is not working at all? For this breakpoint half of the mockup iphone is covered in white.
You can find it on the site “Für Fortbildungen”
Everything looks find on your setup, you just don’t need height applied on Mockup Frame 2, remove height from base breakpoint so that it will be remove form all.
By the way, you may have to adjust your interaction a little.