I have noticed a little problem. My recent activities (lessons) are not shown in the list of activities, though I have completed the lessons several days (or a week) ago.
Are you clicking “I know all”, or have no words in blue for the lesson? This is when a lesson will show up in your activities.
Arghhhh! :))) Thank you very much Angela! 
It helps!
It’s not very obvious though, why should I click “I know all” after I have lingqued all and there are no blue words
Yes, I’m not sure about that. Glad I could help.
The system needs you to click on something to update the statistics.
I know that the term “I know all” is not obvious to all. We have not found a better or more obvious terms although we have asked on the forum before.