Some of your items show 'US only' and other show 'US + Many Other Countries'
Your 'exclusion list is not complete for all listings. Click and edit each item, or all items and redo the 'exclusion' list.
Also be sure that the 'global shipping' is UNCLICKED as everytime you make a new listing (or even use 'sell similar') that box is now checked and needs to manually be unchecked.