I just sort of played around with combinations of moving one or two fingers in different directions until I found one that let me scroll, it took around 20 or 3

I just sort of played around with combinations of moving one or two fingers in different directions until I found one that let me scroll, it took around 20 or 30 seconds. iOS scrolling is very nuanced, so whenever a website tries to mess with it you can always find some kind of edge case that breaks the site.