/api/Item - Financial Entity always shows blank for Dues products

Hello,

We have multiple financial entities. Some Commerce and some Dues products have different entities. However the Entity reported in the /api/Item/ endpoint always returns blank for Dues products.
The UI shows the correct entity in Membership -> Billing Products -> -> Accounting - Financial entity

Is this a bug? Or am I supposed to use another endpoint to get the actual financial entity of a membership product?

Example output of Commerce Item:

"ItemFinancialInformation": {
        "$type": "Asi.Soa.Commerce.DataContracts.ItemFinancialInformationData, Asi.Contracts",
        "FinancialEntity": {
            "$type": "Asi.Soa.Commerce.DataContracts.FinancialEntityData, Asi.Contracts",
            "EntityCode": "AAUS"
        },

Example output of Dues Item:

"ItemFinancialInformation": {
        "$type": "Asi.Soa.Commerce.DataContracts.ItemFinancialInformationData, Asi.Contracts",
        "FinancialEntity": {
            "$type": "Asi.Soa.Commerce.DataContracts.FinancialEntityData, Asi.Contracts"
        },

Thanks.