Words missing from lessons
Sorry if this has been asked already, I couldn't find an existing discussion.
I've noticed sometimes when I do a lesson, one or two of the words listed in the lesson overview do not show up. I do most lessons two or three times for review anyway, so usually I get the missing words eventually, but I've done lessons 2 & 3 in "Food" (Irish) three or four times each, and there is a word in each lesson that still hasn't come up in a sentence. I've noticed this especially in Irish, but it has also been happening in French lately, (although not quite as much - the word usually shows up the second time through), so I'm guessing it's more than just a beta issue.
I know the sentences in the lessons are random, so is this a bug or just bad luck?