Posted: 2018-09-17 12:44
Im in lesson 37 and should be learning the letter D. but a few times now I done the whole minute without getting this new letter sent. I understand that the more letters you add the less likely the occurance of one particulair letter becomes. I think I saw fabian say somewhere in the forums that the probability is skewed a bit towards the "newer" letters. for short lessons, and at the end of the course, this skew could be a bit more agressive. In my opinion.
Posted: 2018-09-19 10:17
indeed, the letters are weighted, but they are not guaranteed to appear in the lesson. When the lesson is long enough this should usually be the case anyway, but with slow speeds and a bit of "luck", you may indeed not get the new letter at all.
I will deploy a little fix for this later today.