Did you read what Trial of Iron does? It is normal, that quicksave does not work, since you cannot save the game yourself.
Trial of Iron - The player has one save game that persists for the entire campaign or until player's character dies.Trial of Iron save games are distinguished with metal textures instead of wood] When a player quits the game, their current state is automatically saved and they can re-enter that saved game to continue playing. However, if their party dies, the game ends and the save is deleted. They must then begin a new Trial of Iron game.
