question

Hey there team, recently I have noticed that if I try to send an adaptive card like this one to a private chat the preview works but in a channel, the preview is broken

 {
     "composeExtension": {
         "attachments": [
             {
                 "content": {
                     "type": "AdaptiveCard",
                     "body": [
                         {
                             "columns": [
                                 {
                                     "width": "auto",
                                     "items": [
                                         {
                                             "horizontalAlignment": null,
                                             "size": "small",
                                             "style": null,
                                             "url": "https://eu-prod.asyncgw.teams.microsoft.com/urlp/v1/url/content?url=https%3a%2f%2fapp.test.com%2fdist%2fimg%2ficons%2femails%2fsession.png",
                                             "width": "14px",
                                             "height": "14px",
                                             "separator": false,
                                             "type": "Image"
                                         }
                                     ],
                                     "separator": false,
                                     "type": "Column"
                                 },
                                 {
                                     "width": "stretch",
                                     "items": [
                                         {
                                             "color": "accent",
                                             "horizontalAlignment": null,
                                             "isSubtle": false,
                                             "maxLines": 0,
                                             "size": "small",
                                             "text": "[Session: Q4 2021]",
                                             "weight": null,
                                             "wrap": true,
                                             "separator": false,
                                             "type": "TextBlock"
                                         }
                                     ],
                                     "separator": false,
                                     "type": "Column"
                                 }
                             ],
                             "separator": false,
                             "type": "ColumnSet"
                         },
                         {
                             "columns": [
                                 {
                                     "width": "auto",
                                     "items": [
                                         {
                                             "horizontalAlignment": null,
                                             "size": "small",
                                             "style": null,
                                             "url": "https://eu-prod.asyncgw.teams.microsoft.com/urlp/v1/url/content?url=https%3a%2f%2fapp.test.com%2fdist%2fimg%2ficons%2femails%2fobjective.png",
                                             "width": "14px",
                                             "height": "14px",
                                             "separator": false,
                                             "type": "Image"
                                         }
                                     ],
                                     "separator": false,
                                     "type": "Column"
                                 },
                                 {
                                     "width": "stretch",
                                     "items": [
                                         {
                                             "color": "accent",
                                             "horizontalAlignment": null,
                                             "isSubtle": false,
                                             "maxLines": 0,
                                             "size": null,
                                             "text": "[Objective: asd _(0%)_]",
                                             "weight": null,
                                             "wrap": true,
                                             "separator": false,
                                             "type": "TextBlock"
                                         }
                                     ],
                                     "separator": false,
                                     "type": "Column"
                                 }
                             ],
                             "style": "default",
                             "spacing": "Small",
                             "separator": false,
                             "type": "ColumnSet"
                         }
                     ],
                     "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
                     "version": "1.0"
                 },
                 "contentType": "application/vnd.microsoft.card.adaptive",
                 "preview": {
                     "content": {
                         "title": "asd",
                         "text": "k b",
                         "images": [
                             {
                                 "url": "https://eu-prod.asyncgw.teams.microsoft.com/urlp/v1/url/content?url=https%3a%2f%2fapp.test.com%2fdist%2fimg%2ficons%2femails%2fobjective.png"
                             }
                         ]
                     },
                     "contentType": "application/vnd.microsoft.card.thumbnail"
                 }
             }
         ],
         "type": "result",
         "attachmentLayout": "list"
     },
     "responseType": "composeExtension"
 }