Unknown icon appears in the header of Adaptive Card

Chih Wei Lin 5 Reputation points


I am writing to seek assistance with an issue that I have encountered while developing an application using the .NET SDK for Microsoft Graph API.

Recently, I have noticed that when sending Adaptive Cards to a chat room in Microsoft Teams, an unknown icon appears at the top of the card's header.

However, this icon does not appear on mobile devices running iOS or Android. This issue did not occur in February, but has surfaced since March.


I would like to know if this is a known issue with the desktop version of Microsoft Teams and if there are any solutions available to resolve this problem.

Thank you for your time and assistance.

Best regards,

Chih Wei Lin

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