We have a very big issue with our store -- When trying to update the quantity of items in the cart, and upon hitting the update button, it just resets to the original quantity. There is no way to update quantities in the cart, which is very concerning.
Edit: We figured out that it let's us update the quantity one time and one time only. When you try to update quantity again after the first update it will stay at that value and cannot be changed. See video below showing what I mean.
Any help would be greatly appreciated!
In case you're unfamiliar with these technologies you'll need to hire a Shopify developer to assist you.