MS teams recording bot fails with internal server error

Hi All,

I am trying out MS teams recording bot and it is failing always with internal server error and call state as terminated with no details. The Dlls used are latest. Could you please help to diagnose this. 

{"@odata.type":"#microsoft.graph.commsNotifications","value":[{"@odata.type":"#microsoft.graph.commsNotification","changeType":"deleted","resource":"/app/calls/4e1f5700-f12e-4603-8e2a-74f93c916c1f","resourceUrl":"/communications/calls/4e1f5700-f12e-4603-8e2a-74f93c916c1f","resourceData":{"@odata.type":"#microsoft.graph.call","state":"terminated","resultInfo":{"@odata.type":"#microsoft.graph.resultInfo","code":500,"subcode":7112,"message":"Server Internal Error. DiagCode: 500#7112.@"},"chatInfo":{"@odata.type":"#microsoft.graph.chatInfo","threadId":"19:meeting_YjU2ZmE1M2UtOGVhZi00OWJlLWJhNGItZGNlNWQyOTk4Mjcx@thread.v2","messageId":"0"},"meetingInfo":{"@odata.type":"#microsoft.graph.organizerMeetingInfo","organizer":{"@odata.type":"#microsoft.graph.identitySet","user":{"@odata.type":"#microsoft.graph.identity","id":"0de038b4-5c99-43d7-928b-32abd36c49f5","tenantId":"460f56dd-4e87-4c6b-8d03-2a700501da93"}}},"callChainId":"042b76e5-9344-4c7f-bfbc-cc652e9ba1f9"}}]}
X-Microsoft-Skype-Chain-ID=042b76e5-9344-4c7f-bfbc-cc652e9ba1f9
Scenario-Id=5d16ce5b-0a80-446a-9619-01001f4ca06f
X-Microsoft-Skype-Message-ID=d4f09f3c-d291-4058-9360-200ed4a51243
Accept=application/json
Authorization=Bearer <<removed>>
Host=learnm365.in.net
User-Agent=Microsoft-Skype/3.0,(Calling/1.0)