Adaptive Card not rendering on Teams Mobile app

Hello Microsoft Support Team,

I am experiencing an issue where an Adaptive Card renders correctly on the Teams desktop client, but the same card does not appear on the Teams mobile app.

Specifically:

• The card is built with version 1.5 and contains a Chart.Gauge element.
• On desktop, everything works as expected.
• On mobile, the card fails to render at all.

Could you please clarify:

• Whether Teams mobile currently supports Adaptive Cards version 1.5.
• Whether the Chart.Gauge element is supported on Teams mobile, or if it requires fallback handling.

If this is a known limitation or regression due to a recent Teams mobile update.

Any documentation or guidance on ensuring consistent rendering across both desktop and mobile clients would be greatly appreciated.

Below is the JSON code I wrote.

{
   "$schema":"https://adaptivecards.io/schemas/adaptive-card.json",
   "type":"AdaptiveCard",
   "version":"1.5",
   "fallbackText":"This card requires Adaptive Cards v1.5 support to be rendered properly.",
   "body":[
      {
         "type":"Container",
         "style":"emphasis",
         "bleed":true,
         "items":[
            {
               "type":"TextBlock",
               "size":"Large",
               "weight":"Bolder",
               "text":"연차 현황",
               "wrap":true,
               "horizontalAlignment":"Center"
            }
         ]
      },
      {
         "type":"ColumnSet",
         "spacing":"Large",
         "separator":true,
         "columns":[
            {
               "type":"Column",
               "width":"stretch",
               "items":[
                  {
                     "type":"Chart.Gauge",
                     "title":"연차 사용률",
                     "colorSet":"sequential",
                     "value":'1',
                     "showLegend":false,
                     "segments":[
                        {
                           "color":"categoricalRed",
                           "legend":"필수 연차 사용률",
                           "size":7
                        },
                        {
                           "color":"neutral",
                           "legend":" ",
                           "size":3
                        }
                     ],
                     "showMinMax":false
                  },
                  {
                     "type":"Container",
                     "items":[
                        {
                           "type":"TextBlock",
                           "horizontalAlignment":"Right",
                           "text":"@@",
                           "wrap":true
                        },
                        {
                           "type":"TextBlock",
                           "horizontalAlignment":"Right",
                           "text":"@@",
                           "wrap":true
                        }
                     ]
                  }
               ]
            }
         ]
      },
      {
         "type":"Container",
         "items":[
            {
               "type":"TextBlock",
               "size":"Large",
               "weight":"Bolder",
               "text":"@@",
               "wrap":true
            }

Thank you:)