Adaptive card Dropdowns for Typeahead search not working

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Posted on by BMAUK

Adaptive card which was displaying dropdown options with Typeahead search has stopped working. I now get a error saying "Sorry, something went wrong. Error code: SystemError. Conversation ID: 371107ff-1152-4be0-82b1-88199e344073. Time (UTC): 10/17/2024 10:44:56 AM.". This is the exact same card that had been working since I raised the question a few months back here: Solved: Search (Typeahead search) option in dropdowns in Adaptive cards (powerplatform.com)

{
 '$schema': "http://adaptivecards.io/schemas/adaptive-card.json",
 type: "AdaptiveCard",
 version: "1.4",
 body: [
 {
 type: "TextBlock",
 text: "Please select your target Application:",
 wrap: true
 },
 {
 type: "Input.ChoiceSet",
 id: "userSelection",
 style: "filtered",
 choices: Topic.Var2
 }
 ],
 actions: [
 {
 type: "Action.Submit",
 title: "Submit"
 }
 ]
}

End users are getting errors for a solution which had worked. Would really appreciate some quick help here.

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BMAUK 28 on at

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Removing the following solved:
style: "filtered",

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Vinoth Selvam 1,590 Super User 2025 Season 2 on at

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Hi BMAUK ,

Adaptive Cards have multiple versions (e.g., 1.4 as specified in your schema). Some platforms may no longer fully support certain features in older versions or require updates to handle newer capabilities, such as filtered dropdowns. Try updating the version in the adaptive card to a newer one like "1.5" or "1.6", which may help fix any backward compatibility issues.

Temporarily replace Topic.Var2 with a static array of options to isolate whether the issue is with the data source or the card structure.

Thanks.

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