extra bag information is missing in the flight offer price response - amadeus

Question

I'm testing self-service APIs. I wonder if this is a bug:
I make a search request, and the response contains the extra bag information in the flight-offer/price/additionalServices
Then I make the offer price request by adding include=bags parameter in the path of Flight Offers Price API.
However there is no any bags information in the response, neither in the offer/price/additionalServices, nor in the included/.
I still try to create order by adding the extra bag. So I use the extra bag information that I got at step 1 (search response). And the order is created successfully.
It seems that the extra bag information is missing in step 2 (response of flight offer price), is it a bug?
Here is an example of my test to reproduce the issue:
search request
{
"currencyCode": "EUR",
"originDestinations": [
{
"id": "1",
"originLocationCode": "PAR",
"destinationLocationCode": "NYC",
"departureDateTimeRange": {
"date": "2020-08-20",
"time": "10:00:00"
}
}
],
"travelers": [
{
"id": "1",
"travelerType": "ADULT"
}
],
"sources": [
"GDS"
],
"searchCriteria": {
"maxFlightOffers": 3
}
}
Then I select the second offer in the response to make a offer price request using include=bags parameter
{
"type": "flight-offer",
"id": "2",
"source": "GDS",
"instantTicketingRequired": false,
"nonHomogeneous": false,
"oneWay": false,
"lastTicketingDate": "2020-08-13",
"numberOfBookableSeats": 8,
"itineraries": [
{
"duration": "PT8H15M",
"segments": [
{
"departure": {
"iataCode": "ORY",
"terminal": "4",
"at": "2020-08-20T19:45:00"
},
"arrival": {
"iataCode": "EWR",
"terminal": "B",
"at": "2020-08-20T22:00:00"
},
"carrierCode": "TX",
"number": "6720",
"aircraft": {
"code": "359"
},
"operating": {
"carrierCode": "BF"
},
"duration": "PT8H15M",
"id": "3",
"numberOfStops": 0,
"blacklistedInEU": false
}
]
}
],
"price": {
"currency": "EUR",
"total": "149.44",
"base": "41.00",
"fees": [
{
"amount": "0.00",
"type": "SUPPLIER"
},
{
"amount": "0.00",
"type": "TICKETING"
}
],
"grandTotal": "149.44",
"additionalServices": [
{
"amount": "70.00",
"type": "CHECKED_BAGS"
}
]
},
"pricingOptions": {
"fareType": [
"PUBLISHED"
],
"includedCheckedBagsOnly": false
},
"validatingAirlineCodes": [
"TX"
],
"travelerPricings": [
{
"travelerId": "1",
"fareOption": "STANDARD",
"travelerType": "ADULT",
"price": {
"currency": "EUR",
"total": "149.44",
"base": "41.00"
},
"fareDetailsBySegment": [
{
"segmentId": "3",
"cabin": "ECONOMY",
"fareBasis": "ULBCOWFR",
"brandedFare": "EBASIC",
"class": "U",
"includedCheckedBags": {
"quantity": 0
}
}
]
}
]
}
There is no extra bag in the response.
Thanks