Messed up lessons after submitting homework

If you haven't submitted homework the lesson is normal and as it was coded. But after you submit the homework the height of the lesson is way shorter (up to 200px) so the scroll bar appears and you have to scroll to see the whole lesson. And since the lesson takes so little place the homework can be seen right away. This only happens after submitting homework on multiple browsers, phone and computer alike, on multiple WoX sites for more users than just me.