After passing a lesson I am still shown the same lesson

After passing a lesson I am still shown the same lesson
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Even after passing a lesson, when I log in another time, I am being directed to the same lesson and my progress is all lost and I have to redo so many times yet I am brought to the same lesson. Please help me asap as I cannot proceed forward due to this issue. Thanks

Just because your browser opens to it doesn’t mean you have to do it again. It just means that your browser remembers that as the last place you were. You can use the curriculum page to jump to the correct challenge.