dear fella, i have tried it with latest version 3.8 too, the problem still persists, i do the exact thing that you say, i put the country to order 30, state to 31, city 32, address 1 to 33, address 2 to 34 and zip code to 35 then save whole orders.
but then those field gets a wrong default value. and i get an error on orders billing print pages.
can you do the same thing without any problem?