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Bertrand_Kerres
Copper Contributor
Sep 22, 2021

Images sent by chat bot not shown after Teams update

We have a chat bot that can send plots of measurement data as attachments. Since a Teams update today of my Windows client app (to 1.4.00.22976), the pictures are not shown anymore. The outline is still visible.

 

Adaptive cards that contain e.g. tables work fine, the problem is only with images.

 

Another error that appears since today is displayed in the login card, see below. The login clearly works, since the bot can use delegated authority to access data from our SharePoint. But it always complains about being unable to reach the app.

 

The bot works perfectly fine using the web client, my mobile, or a colleagues' computer (with the old Teams version), so I'm thinking it must be the client app.

The chat bot is sideloaded using a zip file (upload custom app), it is a development version. The relevant domains (*.botframework.com for authentication, *.azurewebsites.net for the bot webserver) are added to the validDomains attribute in the manifest.

 

Picture missing:

 

 

Login error:

 

 

 

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