It happens to me several times during the game, almost daily, both when I want to get extra plays when I run out or when I won a race and it gives me the option to watch an ad to get more gold, but there is one ad in particular that doesn't work. The countdown starts from 30 and stops at 27, the counter disappears and the bottom bar stays still and I have no choice but to go back and I can't get what is offered.
