In iHMS, select:
If, for example, the Nationality says "China" but the Country says "Australia", write a new heading - "REG" on Checklist 1 and note down the room number that needs to be updated.
Now, the errors you've noted down need to be fixed:
Always ensure that you have slicked "Save" after making these changes.
If the Region is an Australian state, then both the Country & Nationality should be Australia. If the Region is "Not Applicable", the Country & Nationality should be a different country.