Over the weekend I had a serious blitz on my vocabulary, reducing my outstanding score from nearly 1300 to 1148 - but this morning it’s been stuck on 1148 no matter how many words I successfully tick off - and I’ve just confirmed that the last three words I ticked off are still listed as 4s.
Is this a known bug or something localised?
A word becomes known when it moves from status 3 to status 4. The green check only means it will no longer be added to your Daily LingQs.
Your generalised comment didn’t address my specific issue, which was that the vocabulary scoring was demonstrably behaving differently this morning after several months of daily use - but I resolved it myself by logging out and logging back in, whereupon things went back to normal.