I tested on an iPhone and on a Pixel 3. Can you let me know what device you’re testing on and what version of software it’s running? Also, @Siton_Systems had some great ideas above! Looking forward to hearing back!
Tried to clear the cache, then testing with the lightbox on this link, same thing. I’m testing on a iPhone XR and X (Safari on iOS 12.3.1) and Chrome (75.0.3770.103) on same device. Have tested on Safari and Chrome on an iPhone 6 too, but this device is in my office, so not sure about the version numbers, will check tomorrow.
Thanks so much for sharing. I was able to see the same behavior on an iPhone XR. I’m digging in deeper now and will let you know as soon as I have more info!