It happens often that the game doesn't react at all to my moves. Sometimes when I try to perform a valid swap, it takes several clicks on the same 2 titles to actually make the game react and swap them (the game does not freeze, the music keeps playing and the sound when clicking on tiles is always played, but the game refuses to perform the swap). Trying to swap other 2 tiles when this issue occurs also doesn't fix it. Sometimes, the game starts working again after a few seconds, but other times it takes ...