My skills won't strengthen
I keep practicing the skills over and over, but they won't be marked as strengthened. In fact, they are marked as I need to strengthen them forever, no matter what. Is this a bug or something?
The verbs in particular are notorious for this. Try redoing one of the lessons (ie don't strengthen, but redo), and that usually works.
I tried and nothing happened. Right now I have adjectives, verbs, objects, house, adverbs, etc., unable to mark as strengthened :(