You have a pretty high CM rating so if you study courses that are rated below that, you won't get points. You're like 18something on CM so to give an extreme example, if you were studying a beginner course rated 1000 then it really wouldn't be fair to give you additional points for a course far below your rated ability. Hope that made sense. Try a really tough course like Silman's "Elements of positional understanding" and you'll see your rating change.
EDIT "Roots of Positional Understanding"
My Chess Mentor Rating is not increasing again although I got 100% correct for my last 2 Lessons and 60% for another one .. It doesn't even say 0% increase .. only the Rating Bar is there showing 100% but my Rating remains the same.
Why is this so ( Is this a bug ? ) n' How do I get it to work like before ?
I clicked on 'Settings' tab but there's nothing there.
( I do not want to reset my Rating n' History ; I want to continue with my current one )
{ It happened before,but was ok already n' now it is happening again }
Tnx So Much !