I'm working on a Drupal 7 site using Commerce module.
When adding multiple products to a product display, I'm only seeing a single "Add to cart" button for the first product in the reference field, with no select menu for the additional products.
What's strange is that I did have that showing on the node, but not now - although I've only been changing view templates. Is there some config I should check to make sure this functionality is enabled that I may have inadvertently changed?
How would I ensure that a product display shows multiple products properly?