People Picker adaptive element in adaptive cards doesn't work in Teams Android app

Question

I'm trying to use the People Picker element in my adaptive cards and it works very well on the Desktop and iPhone version of Teams. Teams for Android just shows "Unable to show options right now" error message.

Anything I'm missing or is this a bug on the Microsoft side?

For full disclosure this is the JSON being fed to Teams:

{
  "task": {
    "value": {
      "card": {
        "content": {
          "type": "AdaptiveCard",
          "body": [
            {
              "isMultiline": false,
              "maxLength": 0,
              "style": null,
              "value": "10",
              "isRequired": false,
              "id": "xxxId",
              "separator": false,
              "isVisible": false,
              "type": "Input.Text"
            },
            {
              "columns": [
                {
                  "width": "100px",
                  "items": [
                    {
                      "horizontalAlignment": null,
                      "selectAction": {
                        "data": {
                          "formAction": "showXXX"
                        },
                        "type": "Action.Submit"
                      },
                      "size": "large",
                      "style": null,
                      "url": "https://us-prod.asyncgw.teams.microsoft.com/urlp/v1/url/content?url=https%3a%2f%2fmedia.xxx.com%2fapp%2fimages%2fxxx%2fsmall%2fyyy.png",
                      "height": "auto",
                      "separator": false,
                      "type": "Image"
                    }
                  ],
                  "verticalContentAlignment": "center",
                  "separator": false,
                  "type": "Column"
                },
                {
                  "width": "200px",
                  "items": [
                    {
                      "color": null,
                      "horizontalAlignment": null,
                      "isSubtle": false,
                      "maxLines": 0,
                      "size": null,
                      "text": "ZZZ",
                      "weight": null,
                      "wrap": true,
                      "separator": false,
                      "type": "TextBlock"
                    },
                    {
                      "actions": [
                        {
                          "data": {
                            "formAction": "showXXX"
                          },
                          "title": "change",
                          "type": "Action.Submit"
                        }
                      ],
                      "separator": false,
                      "type": "ActionSet"
                    }
                  ],
                  "verticalContentAlignment": "center",
                  "separator": false,
                  "type": "Column"
                }
              ],
              "spacing": "extraLarge",
              "separator": true,
              "type": "ColumnSet"
            },
            {
              "choices": [],
              "isMultiSelect": true,
              "style": "filtered",
              "value": "",
              "wrap": true,
              "choices.data": {
                "type": "Data.Query",
                "dataset": "graph.microsoft.com/users?scope=currentContext"
              },
              "isRequired": false,
              "label": "Search Recipients",
              "id": "recipientIds",
              "separator": false,
              "type": "Input.ChoiceSet"
            },
            {
              "isMultiline": true,
              "maxLength": 125,
              "style": null,
              "value": "",
              "isRequired": false,
              "errorMessage": "Enter a recipient message",
              "label": "Message for recipient(s):",
              "id": "message",
              "spacing": "large",
              "separator": true,
              "type": "Input.Text"
            }
          ],
          "actions": [
            {
              "data": {
                "formAction": "finalSubmit"
              },
              "title": "Send",
              "style": "positive",
              "type": "Action.Submit"
            }
          ],
          "version": "1.0"
        },
        "contentType": "application/vnd.microsoft.card.adaptive"
      },
      "width": 550
    },
    "type": "continue"
  },
  "responseType": "task"
}

Answer 1

This is a confirmed bug in Teams. For now, we have been granted an exception for the Teams app review process.