Yes, although it is in the incubator it still hasn't be edited.
Let me explain the two areas of Duolingo.
Here you will find the creators and moderators of the language course all of whom are volunteers.
On the other hand, there is also the Duolingo professional and technical staff which among many other things administers the Duobot...the computer program that selects certain sentences for Strengthen skills, listening and multiple choice. It has not been updated to include all the sentences added by the course language team
That is where this problem lies. We have reported it and when Duolingo upgrades its Duobot this should be corrected. We, of course, remain with the hope that it will be soon.
Thank you for your input and understanding.
I am in awe of all these volunteers, what generosity! Its one thing to volunteer for a task once a month or even once a week but to volunteer day after day is truly awesome. And to top it off to be willing with erudition and good humour to help all and to answer the same questions over and over again it blows my mind. Thank you, it is deeply appreciated.
THANK YOU. It's the appreciation of the community and the knowledge that someone is learning that give us the impetus to go on. You are very kind to tell us and we wish you the best.
I always look forward to good advice and suggestions when I see your avatar. Today you have brought something very special to the stream.