Order_add_line_items adds item total twice to order sub total

GraphQL API
1

When I try to add a line item to an order, the line item total is getting added twice to the order sub total. This is the mutation I am issuing:

mutation {
order_add_line_items(
data: {
order_id: “T3JkZXI6MTE1NTY1MzMw”
line_items: [
{
sku: “P0004”
partner_line_item_id: “9728”
quantity: 4
price: “10.00”
}
]
}
) {
request_id
complexity
order {
id
line_items(first: 4) {
edges {
node {
sku
id
partner_line_item_id
}
}
}
}
}
}

This is the response I get back. Please note request_id:

{
“data”: {
“order_add_line_items”: {
“request_id”: “5e37417799491aaee2b6a2e0”,
“complexity”: 10,
“order”: {
“id”: “T3JkZXI6MTE1NTY1MzMw”,
“line_items”: {
“edges”: [
{
“node”: {
“sku”: “P0003”,
“id”: “TGluZUl0ZW06MzM3NDUzNjI4”,
“partner_line_item_id”: “9709”
}
},
{
“node”: {
“sku”: “P0001”,
“id”: “TGluZUl0ZW06MzM3NDUzNjI3”,
“partner_line_item_id”: “9710”
}
},
{
“node”: {
“sku”: “P0002”,
“id”: “TGluZUl0ZW06MzM3NDU0NTYw”,
“partner_line_item_id”: “9712”
}
},
{
“node”: {
“sku”: “P0004”,
“id”: “TGluZUl0ZW06MzM3NjYxOTE4”,
“partner_line_item_id”: “9728”
}
}
]
}
}
}
}
}

The line item is getting added to the order with correct quantity and price. The mutation should add $40 to the order sub total, but instead it is adding $80 to the sub total. It doesn’t matter what quantity or price I use, it always does the same thing. Can you look at this please?
Thanks,
Al