I'm trying to know how far my users scroll on my website. With Google Tag Manager I've set a trigger that fire an event when some marked element appears on the page. It's working but something strange is happening. On my page this is the order in vertical alignment that the elements I'm trying to track:
Section1 Section2 Section3
So, every time any users 'sees' any section on his screen I get an event. The problem is I'm getting users that sees the section 1 and 3 which is impossible because they have to watch the section2. I don't know if it's caused by the tag manager or the analytics configuration.