I have a tendency to scroll while I am reading. This made it so the first section, which I had not yet finished reading scrolled out of view. I scrolled back up and had to re-look for my place and instinctively scrolled down again losing my place again. Took strong will to give up scrolling and read each slide completely before moving on.<p>Deviates significantly from a normal user experience and results in a jarring experience for me personally.