Adaptive card is not rendered on android phone

jobinesh Hello i have the exact same problem with a card i did by myself: it renders on pc just fine, but not on mobile.

{
      schema: "http://adaptivecards.io/schemas/adaptive-card.json",
      version: "1.0.0",
      type: "AdaptiveCard",
      body: [
        {
          type: "TextBlock",
          //text: taskDefination[state] + " [" + tasks.length + "]",
        },
        ...tasks.map((t) => (
          
            {
          type: "ColumnSet",
          separator:true,
          height : "auto",
          spacing: "padding",
          columns: [

            {
              type: "Column",
              items: [
                {
                  type: "Image",
                  url : t.src
                },
              ],
            },



            {
              type: "Column",
              items: [
                {
                  type: "TextBlock",
                  text: t.receiptNo,
                  weight: "bolder",
                  horizontalAlignment: "center"
                },
              ],
            },

            {
              type: "Column",
              items: [
                {
                  type: "ActionSet",
                  actions: [
                    {
                      type: "Action.Submit",
                      //id: "btnBuy",
                      style : "positive",
                      title: "Show Expense",
                      data: {
                        taskId: t.receiptNo,
                        msteams: {
                          type: "task/fetch",
                        },
                      },
                    },
                  ],
                },
              ],
            },
          ],
        }
        
        
        
        )),
      ],
    }