Thank you for the list. I was able to update all the files listed and the editing/creating issue looks fixed.
However, what happens now is...
For example I have two addresses A & B under both billing and shipping respectively. If I select A under billing and B under shipping, then edit B under shipping and click OK, the page refreshes and now B becomes selected under billing. I want it to stay A as it was selected before.
The other suggestion of yours of adding the code below in the address_view.php file doesn't help as the same thing happens - when I add a new shipping address, after save and page refresh, the new address appears selected under billing.
else{
continue;
}
How can I separate the two?