Button style positive not working on mobile app Teams

Nivedipa-MSFT 

Sure! Here is my full adaptive card JSON

{
    "type": "AdaptiveCard",
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "version": "1.5",
    "body": [
        {
            "type": "Container",
            "id": "answer-block",
            "items": [
                {
                    "type": "TextBlock",
                    "text": "like feedback",
                    "wrap": true
                },
                {
                    "type": "Container",
                    "id": "feedback-block_result",
                    "separator": true,
                    "targetWidth": "atLeast:standard",
                    "items": [
                        {
                            "type": "ActionSet",
                            "actions": [
                                {
                                    "type": "Action.ToggleVisibility",
                                    "targetElements": [
                                        "textToToggle"
                                    ],
                                    "id": "resultselect_like",
                                    "tooltip": "Helpful",
                                    "iconUrl": "icon:ThumbLike",
                                    "style": "positive"
                                },
                                {
                                    "type": "Action.ToggleVisibility",
                                    "targetElements": [
                                        "textToToggle"
                                    ],
                                    "id": "resultselect_dislike",
                                    "tooltip": "Not helpful",
                                    "iconUrl": "icon:ThumbDislike",
                                    "style": "default"
                                }
                            ]
                        }
                    ]
                },
                {
                    "type": "Container",
                    "id": "feedback-block_result_mobile",
                    "separator": true,
                    "targetWidth": "atMost:narrow",
                    "items": [
                        {
                            "type": "ActionSet",
                            "actions": [
                                {
                                    "type": "Action.ToggleVisibility",
                                    "targetElements": [
                                        "textToToggle"
                                    ],
                                    "id": "result_like_mo",
                                    "tooltip": "Helpful",
                                    "title": "👍",
                                    "style": "positive"
                                },
                                {
                                    "type": "Action.ToggleVisibility",
                                    "targetElements": [
                                        "textToToggle"
                                    ],
                                    "id": "result_dislike_mo",
                                    "tooltip": "Not helpful",
                                    "title": "👎",
                                    "style": "default"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    ],
    "msteams": {
        "width": "Full"
    }
}