I appear to have an issue when purchasing a quota subscription and shipping. If I put a product with shipping into my cart first and then put a quota subscription, Foxycart will add the shipping from the first product to the subscription as well. So if the first product's shipping is $7, then I have a total shipping of $14 after adding the quota subscription item.
If I add the quota subscription first, I get a shipping of $NaN and an Order Total: $NaN which doesn't change no matter how many shipping items I add to the cart.
I'm adding the quota subscription to my cart via the smarty subscription function button method.
updated by @blindmime: 10/31/15 06:14:44AM