Hi,
We developed a custom app and want to support latest configurableProperties features that came with 1.10 version of the manifest.
However, we're not able to sideload the app both via Teams client or Admin center.
POST https://graph.microsoft.com/beta/appCatalogs/teamsApps returns 502 error
Response payload
{"error":{"code":"BadGateway","message":"Failed to execute backend request.","innerError":{"date":"2021-05-19T08:17:13","request-id":"10ab2317-e8e8-4c14-929d-455e3703f8f3","client-request-id":"10ab2317-e8e8-4c14-929d-455e3703f8f3"}}}
The one we used previously (1.8 manifest version) works fine.