Recently, when I “learn” new words on auto-learning, I’m finding that I get two fewer new words than I should.
For instance, if in /settings/learning I’ve set 10 words per learning session, then hitting auto-learn adds only 8 new words. And if I set 5 words per learning session then I only get 3. (I should maybe also mention that originally the problem was only 1 fewer words, then after a few days it became 2 fewer words).
This happens on the website. I use Firefox 85.0.2 (64-bit) on Windows 10.
I guess to reproduce the issue you would have to go to a self-generated course, hit auto-learn and see if you get the same amount of words per session as selected in /settings/learning?