When my screen rotates (Google Pixel) it annoyingly keeps playing the audio sample that it is getting you to guess on the “Learn new Words” or “Classic Review”. Every screen rotation makes it repeat what is on the screen out loud but not only does the UI look bad in landscape mode (buttons are squashed to the point of being unreadable) but where I use the app on a train and have to sometimes put the phone into my pocket, I can hear the same word repeated over and over again as I am walking for a few seconds or trying to let someone past.
It is an old bug, you get the same question over if you rotate the phone. BTW it is a common way of point-harvesting, since you can get endless amount of points if you rotate the phone immediately after you answer the question 
(loool 
the app is such an interesting thing )
I had noticed this too! I was also able to change what question was being asked of me by timing a phone rotation alongside taping an answer.