I’ve set a custom demo at https://dxdemos.eu/loadmore/2018/11/15/hello-world/ where you can observe the bug. What happens is that when you open this URL in the Snapchat app, everything seems fine until you scroll down and click “load more”. Then the new post loads, all good. But when you drag to scroll a bit, the page jumps a little.
When you scroll down more to load the next post, it load nice, and on the next drag it jumps like 300px down. I couldn’t reproduce this on any other device/browser. It seems that iOS devices work though… So it’s probably a different browser version?
But really, this is the weirdest bug I encountered in months…
I will be so gratefull if someone has seen such issue before !