Missing report instance segments

I'm following the flow to get my reports data:

• get the requests (ONGOING or ONE_TIME_SNAPSHOT) for my app (https://api.appstoreconnect.apple.com/v1/apps/{{appID}}/analyticsReportRequests?filter%5BaccessType%5D=ONGOING)
• get the report (App Sessions Standard, for example) (https://api.appstoreconnect.apple.com/v1/analyticsReportRequests/{{requestID}}/reports?filter%5Bname%5D={{report}})
• get the daily instances of the ONGOING request (https://api.appstoreconnect.apple.com/v1/analyticsReports/{{reportID}}/instances?filter%5Bgranularity%5D=DAILY)
• get the segments for the selected instance (https://api.appstoreconnect.apple.com/v1/analyticsReportInstances/{{instanceID}}/segments)

This flow used to work fine, but recently I noticed that the earliest instances (mostly of processing date 2025-02-24 until 2025-02-27 return an error when I'm trying to get the instance segments usint the URL https://api.appstoreconnect.apple.com/v1/analyticsReportInstances/{{instanceID}}/segments.

The error is the following:

"title": "The specified resource does not exist",
"detail": "There is no resource of type 'analyticsReportInstances' with id '32f8b58b-07da-4d50-899f-34a7c0488927'"

Even when the list of instances return me such object with ID when consulting the resource https://api.appstoreconnect.apple.com/v1/analyticsReports/{{reportID}}/instances?filter%5Bgranularity%5D=DAILY:

{
    "data": [
        {
            "type": "analyticsReportInstances",
            "id": "32f8b58b-07da-4d50-899f-34a7c0488927",
            "attributes": {
                "granularity": "DAILY",
                "processingDate": "2025-02-25"
            },
            "relationships": {
                "segments": {
                    "links": {
                        "self": "https://api.appstoreconnect.apple.com/v1/analyticsReportInstances/32f8b58b-07da-4d50-899f-34a7c0488927/relationships/segments",
                        "related": "https://api.appstoreconnect.apple.com/v1/analyticsReportInstances/32f8b58b-07da-4d50-899f-34a7c0488927/segments"
                    }
                }
            },
            "links": {
                "self": "https://api.appstoreconnect.apple.com/v1/analyticsReportInstances/32f8b58b-07da-4d50-899f-34a7c0488927"
            }
        },

And as for the days that I can retrieve data, there seems to be happening an Internal Server Error with frequency, but retrying the request seems to solve it.