Adding multiple custom metafields to the Cart

[builtbyvern]

I'm trying add a few metafields to the Cart in Hydrogen using the code below. When I view the cart and log out the contents, only dealer_id shows up in the metafields array. If I try to only show store_name and ignore setting dealer_id, I actually end up with no metafields in the Cart object. I can also confirm that store_name is not empty.

fetcher.submit(
  {
    [CartForm.INPUT_NAME]: JSON.stringify({
      action: CartForm.ACTIONS.MetafieldsSet,
      inputs: {
        metafields: [
          {
            key: 'custom.dealer_id',
            type: 'string',
            value: store_vendor_id,
          },
          {
            key: 'custom.store_name',
            type: 'string',
            value: store_name,
          },
         
        ],
      },
    }),
  },
  {method: 'POST', action: '/cart'},
);

fragment CartApiQuery on Cart {
  metafields(identifiers:
  [
    {namespace: "custom", key: "dealer_id"},
    {namespace: "custom", key: "store_name"}
  ]) {
      key
      value
  }
  ...