Duplicated items in bundles

Hi there,

I am having problem with duplicated products in orders, that are sent to warehouse.
In the checkout and email confirmation as well as in invoices, the product numbers ordered are correct.

But no matter what settings I use (I tried all combinations), the bundles are always exported to my warehouse as duplicate. For example, 1 bundle that consists of 3 products is exported as 3 produtcs in bundle and the same 3 products separately, thus getting 6 products instead of 3.

The warehouse informed me after inspection that the problem is not on their site.

The code they get looks following:

"items": [

                {

                    "item_id": "222", (toto je ITEM ID, ktoré môžete nájsť v zelenom rámčeku v detaile objednávky, alebo v tovarových kartách)

                    "catalog_id": "222",

                    "name": "Balíček BESTSELLERS SK",

                    "count": 1,

                    "expiration": 0,

                    "exp_value": "",

                    "price": 45.445455,

                    "price_with_tax": 49.985455,

                    "tax": "10.0000"

                },

                {

                    "item_id": "9788057012511",

                    "catalog_id": "9788057012511",

                    "name": "Fit recepty - obedy a večere",

                    "count": 1,

                    "expiration": 0,

                    "exp_value": "",

                    "price": 0,

                    "price_with_tax": 0,

                    "tax": 0

                },

                {

                    "item_id": "9788097184551",

                    "catalog_id": "9788097184551",

                    "name": "Kniha Fit Recepty 1.diel",

                    "count": 1,

                    "expiration": 0,

                    "exp_value": "",

                    "price": 0,

                    "price_with_tax": 0,

                    "tax": 0

                },

                {

                    "item_id": "9788097242985",

                    "catalog_id": "9788097242985",

                    "name": "Štíhle recepty do 15 minút",

                    "count": 1,

                    "expiration": 0,

                    "exp_value": "",

                    "price": 0,

                    "price_with_tax": 0,

                    "tax": 0

The first item is the correct bundle, but the latter 3 items are the ones the bundle is consisting of – and I do not want to have them exported, as this is cretaing the duplication.

Could you please help me resolve this issue?
Thank you