Wa alaikum assalam Akh_As-Salafiyyah, thanks for reaching out and sharing the screenshot. The drop in percentage you’re seeing is likely due to the introduction of new grammar concepts, which the app tracks alongside vocabulary. In the Read tab, unfamiliar words remain highlighted blue, while unfamiliar grammar rules are highlighted orange. Your known vocabulary progress probably hasn’t been wiped; the overall percentage just adjusts as these new grammatical rules are introduced for you to learn.
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