For many, many, many moons, the video reward has a serious flaw in Android 6 to higher, in which the video is displayed, and reloads the game again, not being able to grant such a reward. It only works in Android 5. I have tried them in different emulators with different versions, and only in Nox Player with Android version 5 loads well. I would like to know if they have worked on it or it would be the first mention about this problem.
Another couple of details that I checked is that it seems to have a serious “memory leak”, in which it makes an exaggerated use of memory, so I estimate that computers with less than 4GB of RAM would not run well, also some parts of the game have not been translated in its entirety (and I noticed after the last update, in which they released the friends’ campaigns)