Are there any restrictions on the JSON fields for the adaptive cards, type messageBack

[Piter1200]

Hi! I'm using an adaptive card with content buttons, sending a button with type "messageBack" (I also tried "postBack"), and a JSON set as value. All good, but it looks like some keys get stripped from my JSON value.

For example, I'm sending 

{
  "text": "state?",
  "attachmentLayout": "list",
  "attachments": [
    {
      "contentType": "application/vnd.microsoft.card.hero",
      "content": {
        "buttons": [
          {
            "title": "state 1",
            "type": "messageBack",
            "value": "{\"state\":111,\"test2\":2222,\"test3\":333}"
          }
        ]
      }
    }
  ]
}

And when the button gets clicked, I get back as value

{
  test2: 2222,
  test3: 333,
}

Looks like the "state" key from my JSON got removed. Any ideea why? Or maybe there's a link in the documentation with some keywords? That can't be used? Or I'm doing something wrong here.

Thanks!

[#2]

@Piter1200 - Thanks for reporting your issue. We will check and update you soon.

[#3]

@Piter1200 - We have tested this and able to repro the issue. We have raised a bug for the same. We will let you know once we get any updates on it. Thanks.

[#4]

@Piter1200 - This bug has been fixed now. We have tested this on Teams desktop client version 24137.2216.2931.2440 and we are able to get the state key and value.

Could you please test this and confirm once?