iOS share/back bar bug
As we distribute content, we noticed that when viewing a rise module on mobile, the iOS white share/back bar never disappears. We quickly found out that this bar tends to cover up the continue/next button that is at the very bottom of each module. Definitely makes people a little angry.
On normal web pages this bar is not present unless you click that area of the screen. I'd pop this bug at the top of the list as for us, it makes at least one module in a series unusable.