It looks like the game is using the wrong info and its hard for me tell without a proper combat log. But in general once the target fails its saving throw its scared, then during its next turn it should take damage and end of its turn make a savings throw. Instead it makes its savings throw at the beginign of its turning meaning inorder for damage to occur 2 savings throws have to be passed. Personaly I think it should take damage immediatly on failing and again the second round and after the second round it rolls for save
