Can’t see states for some country

For example when i select “austria” in backend i can’t select states. But if i select “italy” i can select all states.

Thus when customer is on checkout and try to calculate shipping cost, if selected country is italy with a state, it calculate shipping cost. Else if austria is selected it doesn’t calculate shipping cost because and disappears the shipping method.

I need austria and other country be available in checkout as shipping destination.

Thanks