IWDG timer doesn't work on STM32F030K6T6 microcontroller

Question

I have to enable IWDG on my STM32 based project. It doesn't work properly as I expect to. Below is the code which CubeMX created.

  hiwdg.Instance = IWDG;
  hiwdg.Init.Prescaler = IWDG_PRESCALER_8;
  hiwdg.Init.Window = 4095;
  hiwdg.Init.Reload = 49;
  if (HAL_IWDG_Init(&hiwdg) != HAL_OK)
  {
    Error_Handler();
  }

I'm using STM32F030K6T6 for this project and when I don't refresh the timer, I expect a reset after a timeout, right?

But I don't even put the Refresh function line in the code and there is no reset on my board. I put a delay at the beginning to notice the reset but there is no one.

Do you guys guess it can be a bug in STM32CubeIDE? (As I am using this IDE)

I would appreciate your help.