I had the same issue except with dragons. It shows 1 left even though I collected them all. It ended my winnings streak where I get 3 extra lives, and bonus candies for each new level. I also lost 10 gold bars making sure there were no other dragons.
I’ve had the same issue and couldn’t find an answer in the FAQ so I came here. I was getting the ads which I loved for when I needed an extra life or the boost, then they just disappeared after I made a purchase. 🤔 I love playing again (took a long break), but those were helpful even if you limited them to per day or…