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Items that were mastered and "go grey" again

Hi I finished a few topics and mastered them (got the golden cup, hurray:) ) Anyway some topics go "unmastered" after a while...and them I have to reamaster them again... any specific reason?

June 27, 2012



I believe Duolingo has changed the point requirements for mastering. Increased the required number of point in some of the skills to have them mastered. I happened to me as well, I think this is the reason.


Yes it happens when duolingo updates its material and adds some new exercises. It gives you a chance to do them if you want but you don't have to.

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