[Rendering] Teams 2.1/New Channels Experience "full width" cards not so full width.

[z3019494]

Target Platforms

UWP, Other

SDK Version

Unsure

Application Name

Microsoft Teams 2.1/New Channels Experience

Problem Description

When using
"msteams": { "width": "full" }
in an adaptive card, the classic Teams client will render it properly as the full width of the conversation box:

However, in Teams 2.1 or cases where the New Channel Experience has become the default in Teams Classic, the adaptive card width is no more than around two thirds of the conversation box:

Screenshots

No response

Card JSON

{
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "type": "AdaptiveCard",
    "version": "1.4",
    "msteams": {
        "width": "Full"
    },
    "body": [
        {
            "type": "Container",
            "bleed": true,
            "style": "emphasis",
            "items": [
                {
                    "type": "ColumnSet",
                    "columns": [
                        {
                            "type": "Column",
                            "width": "auto",
                            "items": [
                                {
                                    "type": "Image",
                                    "altText": "Announcement",
                                    "url": "https://normanhurb-h.schools.nsw.gov.au/content/dam/doe/sws/schools/n/normanhurb-h/icons/Communication.png",
                                    "width": "75px",
                                    "selectAction": {
                                        "type": "Action.OpenUrl",
                                        "url": "https://schoolsnsw.sharepoint.com/sites/N1XHSGBP/SitePages/Modern-Home.aspx#%F0%9F%93%A2-announcements",
                                        "id": "11",
                                        "title": ""
                                    }
                                }
                            ]
                        },
                        {
                            "type": "Column",
                            "width": "stretch",
                            "items": [
                                {
                                    "type": "TextBlock",
                                    "text": "**Whole School Announcement Summaries** ",
                                    "weight": "Bolder",
                                    "size": "Large",
                                    "wrap": true,
                                    "color": "Attention"
                                }
                            ],
                            "verticalContentAlignment": "Center"
                        }
                    ]
                }
            ]
        },
        {
            "type": "TextBlock",
            "text": "This thread contains announcement summaries that are posted at \n- 8:00 am\n- 12:00 pm (midday)\n- 4:00 pm\n\neach day, where new announcement have been made.",
            "wrap": true,
            "separator": true,
            "size": "Small",
            "color": "Accent"
        },
        {
            "type": "ActionSet",
            "actions": [
                {
                    "type": "Action.OpenUrl",
                    "title": "All Whole School Announcements",
                    "url": "https://schoolsnsw.sharepoint.com/sites/N1XHSGBP/SitePages/Modern-Home.aspx#%F0%9F%93%A2-announcements",
                    "style": "positive",
                    "id": "2",
                    "iconUrl": "https://normanhurb-h.schools.nsw.gov.au/content/dam/doe/sws/schools/n/normanhurb-h/icons/sharepoint.png"
                },
                {
                    "type": "Action.OpenUrl",
                    "title": "Manage announcements",
                    "url": "https://schoolsnsw.sharepoint.com/sites/N1XHSGBP/Lists/Whole%20School%20Announcements/manage-announcement.aspx",
                    "style": "positive",
                    "id": "3",
                    "iconUrl": "https://normanhurb-h.schools.nsw.gov.au/content/dam/doe/sws/schools/n/normanhurb-h/icons/sharepoint.png"
                }
            ]
        }
    ]
}

Sample Code Language

No response

Sample Code

No response

[z3019494]

It looks lie this issue has now been fixed on Teams 2.1:

However, the Teams 1.0 New Channels Experience on the web seems to continue to suffer from the same problem.

[jwoo-msft]

this is the Teams issue.

[sayali-MSFT]

Please track this issue from here-MicrosoftDocs/msteams-docs#9602