More information if it’s helpful:
I am beginning to think that this has never worked. I believe that the old WooCommerce Shipping & Tax plugin that used to handle shipping is the one that worked for us with fractional quantities. I rolled back to September and found that the same issue is happening, but the behavior is slightly different:
In the September version –
If an order has already been fulfilled, the button shows “View or add shipments” for both fractional and integer quantities, and the label shows “N items were fulfilled.” When clicked, we see existing shipments, labels, etc.
If an order has NOT been fulfilled, no button shows up at all. The title of the box (“Shipping Label”) appears, but the rest is blank.
In the current version –
If an order has already been fulfilled, the button shows “View or add shipments” for integer quantities, and the label shows “N items were fulfilled.” When clicked, we see existing shipments, labels, etc. [Same behavior as above.]
If an order has already been fulfilled, the button shows “Create shipping labels” for fractional quantities, and the label shows “N items are ready to be fulfilled.” When clicked, we see existing shipments, labels, etc. [NOTE: This label was created with the old Shipping & Tax plugin.]
If an order has NOT been fulfilled, no button shows up at all. The title of the box (“Shipping Label”) appears, but the rest is blank. [Same behavior as above.]
I don’t know if that is helpful for the dev team, but I am trying to give you everything I am discovering in case it makes it easier to fix this so we can use the plugin! Thank you.