The flaming animation (from the flaming dungeon) seems to disappear after I go back to the map screen, and only reappears after attempting a dungeon.
For example, I load the game, go into my kingdom click Tavern -> flame shows properly. I go back to my kingdom to check what's in my lockers, then click Tavern again -> map no longer shows the flame animation (but if I click on the map, it does display the text, and if I beat it, it does give increased trophy gold).