Yesterday and today there are lessons missing from my Spanish from English tree.
Lesson 11 is missing from Verb future tense.
And I know that I complete lesson 3 in countries and lesson 3 in adjectives 2 but both are saying that I didn't do them yesterday.
Today I also discovered to have lost progress in two lessons I had already completed. One in German (abstract objects 3) and one in Spanish (ir future). I redid them and words were not shown as new during the lessons.