I had a similar issue before and but realized the product in question was set to “backorders allowed”, which is why the product was not considered “out of stock”. In this case, the product variation is set to “backorders not allowed”, so it really is out-of-stock.
Public
Ticket #156096
No message shown for out of stock items
Eric Embacher
I have the “Show Product Availability” setting ON for my product archive page.
Selecting an image in stock shows a message “X in stock”. GOOD.
One of the variations for this product is out of stock:
However, when selecting it, no stock information is shown for it: