Customer name (full name or first/last name) field values are not being saved on editing an order
I first noticed that the customer's billing details were not saved when I viewed the orders and saw no customer names were being saved. So I edited an order and re-entered customer's name into the billing details and noticed again that the values were not being saved. Any help would be really appreciated. I'm unsure if this is a bug - as I've not seen this issue reported elsewhere - or something unusual with my Drupal/Commerce installation. Certainly the site I've built has nothing complex or unusual about it.