MSFT Teams does not render adaptive card with DATE function

Question

I have an adaptive card with some text & input fields. The card would show up fine in Bot emulator but it would not render in teams. I have analyzed the issue to be related to DATE function. Consider the following simple card

{
    "type": "AdaptiveCard",
    "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
    "version": "1.2",
    "body": [
        {
            "type": "TextBlock",
            "text": "{{DATE(2018-03-26T08:00:00Z)}}"
        }
    ]
}

The above card would render fine in https://www.adaptivecards.io/designer or Bot emulator but it would not render in MSFT Teams. I even tried it in App studio (Card Editor) in MSFT Teams. App studio (Card Editor) would show proper preview but when I click on Send me this card , it comes blank

This was working fine in Teams some time back (maybe a week(s) ago) I would really appreciate it if you guys can help me fix or find a workaround to this issue. Thanks...

Answer 1

Funny & strange, It cost me a day but restarting Teams solved the issue. Thanks...