MessageId undefined when creating a message

GuillaumeStD - We tried sending message with an attachment using graph explorer and through a bot. In both the cases we can see below in the response.

Response for a bot

{
    "attachments": [
        {
            "contentType": "application/vnd.microsoft.teams.file.download.info",
            "content": {
                "downloadUrl": "https://m365x654992-my.sharepoint.com/personal/admin_m365x654992_onmicrosoft_com/_layouts/15/download.aspx?UniqueId=94520df7-36a1-4b58-b5ce-074ded665c4c&Translate=false&tempauth=eyJ0eXAiOiJKV1QiLCJhbGciOiJub25lIn0.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.L1g3MzhqVlNpeUgrazVISlRpVTZsZFFFblZwUWxGZ3VGeWhhbmRTdlF5OD0&ApiVersion=2.0",
                "uniqueId": "94520df7-36a1-4b58-b5ce-074ded665c4c",
                "fileType": "png"
            },
            "contentUrl": "https://m365x654992-my.sharepoint.com/personal/admin_m365x654992_onmicrosoft_com/Documents/Microsoft Teams Chat Files/signin.PNG",
            "name": "signin.PNG"
        },
        {
            "contentType": "text/html",
            "content": ""
        }
    ],
    "type": "message",
    "timestamp": "2022-10-04T18:02:25.4863209Z",
    "localTimestamp": "2022-10-04T23:32:25.4863209+05:30",
    "id": "1664906545384",
    "channelId": "msteams",
    "serviceUrl": "https://smba.trafficmanager.net/amer/",
    "from": {
        "id": "29:1QT50AaMqBsYzEGE5xVhu92Gt-jdb_x2lKt0hrduDCLdBM8wljPfJqvjGNPsU15bPg8i_psUiCGZr-8MVsZ0xQg",
        "name": "MOD Administrator",
        "aadObjectId": "4ebcc4d0-291b-4154-a85f-a89cd77aefa8"
    },
    "conversation": {
        "conversationType": "personal",
        "tenantId": "36a708ef-700d-4d60-9de0-0a5f7b7693df",
        "id": "a:1YY_gZHYmENg-dpmwpbAkI240ELNnoF_xKLtRo03Vt917Ym5g5wppjuRSQve0xiD7pqqY9OIsG8ogBXMYUFgNJbLdJgPCMYLDG7tnUTQzGrtbUrW7188iBgp8Uay4Y_oZ"
    },
    "recipient": {
        "id": "28:7ad956d2-7b3c-4769-8792-3236a0618da4",
        "name": "appssonpm"
    },
    "entities": [
        {
            "locale": "en-US",
            "country": "US",
            "platform": "Web",
            "timezone": "Asia/Calcutta",
            "type": "clientInfo"
        }
    ],
    "channelData": {
        "tenant": {
            "id": "36a708ef-700d-4d60-9de0-0a5f7b7693df"
        }
    },
    "locale": "en-US",
    "localTimezone": "Asia/Calcutta"
}

 Response while sending attachment using Graph -

{
    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#teams('27dd5b6f-0048-4338-acfd-5852b944b714')/channels('19%3A76a3f036b7bf4e6d9641c45347da23a1%40thread.tacv2')/messages/$entity",
    "id": "1664904065325",
    "replyToId": null,
    "etag": "1664904065325",
    "messageType": "message",
    "createdDateTime": "2022-10-04T17:21:05.325Z",
    "lastModifiedDateTime": "2022-10-04T17:21:05.325Z",
    "lastEditedDateTime": null,
    "deletedDateTime": null,
    "subject": null,
    "summary": null,
    "chatId": null,
    "importance": "normal",
    "locale": "en-us",
    "webUrl": "https://teams.microsoft.com/l/message/19%3A76a3f036b7bf4e6d9641c45347da23a1%40thread.tacv2/1664904065325?groupId=27dd5b6f-0048-4338-acfd-5852b944b714&tenantId=36a708ef-700d-4d60-9de0-0a5f7b7693df&createdTime=1664904065325&parentMessageId=1664904065325",
    "policyViolation": null,
    "eventDetail": null,
    "from": {
        "application": null,
        "device": null,
        "user": {
            "id": "4ebcc4d0-291b-4154-a85f-a89cd77aefa8",
            "displayName": "MOD Administrator",
            "userIdentityType": "aadUser"
        }
    },
    "body": {
        "contentType": "html",
        "content": "Here's the latest budget. <attachment id=\"7bd0609d-0ca7-41f2-aed9-2f2cbae6cae2\"></attachment>"
    },
    "channelIdentity": {
        "teamId": "27dd5b6f-0048-4338-acfd-5852b944b714",
        "channelId": "19:76a3f036b7bf4e6d9641c45347da23a1@thread.tacv2"
    },
    "attachments": [
        {
            "id": "7bd0609d-0ca7-41f2-aed9-2f2cbae6cae2",
            "contentType": "reference",
            "contentUrl": "https://m365x654992-my.sharepoint.com/personal/admin_m365x654992_onmicrosoft_com/_layouts/15/Doc.aspx?sourcedoc=%7B7BD0609D-0CA7-41F2-AED9-2F2CBAE6CAE2%7D&file=Document2.docx",
            "content": null,
            "name": "Document2.docx",
            "thumbnailUrl": null
        }
    ],
    "mentions": [],
    "reactions": []
}