Using 2 fingers to sneak no longer works

Before 1.18.30, I as a mobile player could use 2 fingers to spam the sneak button in order to sneak very fast. However, as soon as I updated to 1.18.30 this no longer works and instead causes the little "touch" circles to appear behind the shift button (video below). This is quite annoying for me, as I play on a large server where being able to shift fast is a must.