My DS is finding a problem with the number of remaining questions which surprisingly increase everytime he finishes a set of 10 questions.
He started with 41 questions and he completed 5 sets this morning. Now the number has gone up to 46!
Thank you for reporting this. We passed it on to our technical team and an update was applied yesterday which should have fixed any issues experienced with Retry Questions. Please kindly let us know if you still experience any similar problems.