Can't complete 'objects' in English->Portuguese in ios app

[vvkrastev]

I can't complete the objects section in the English to Portuguese course on the ios app. I have finished 9/10 lessons but lesson 10 is identical to 9. When I try to do the tenth lesson and I complete it I don't get credit.

[vvkrastev]

This is pretty serious bug - because I hadn't completed the 10th lesson I couldn't unlock the next sets of skills.

Through the web version of Duolingo I was able to complete the 10th lesson. This also unlocked the next set of skills on the ios app.