What factors prevented Germany, in spite of its rapid industrialization and economic prosperity, to establish a consolidated democracy before the end of the Second World War?

Unlike many other Western European nations, was a latecomer in the camp of democratic political systems. Democratization took place after the end of World War II, though they experienced a short period of democracy under the Weimer Republic between 1919 and 1933. However, Germany had a successful transition to democracy and there has not been any serious threat to German democracy within the past seven decades. What factors prevented Germany, in spite of its rapid industrialization and economic prosperity, to establish a consolidated democracy before the end of the Second World War? Also what factors contributed to significant political stability in the country unlike some other European nations such as Italy.