We are currently experiencing performance issues on the Messaging API endpoint.
Some API calls may return
"SMSMessageData": {
"Message": "InternalServerError",
"Recipients": []
}
Our infrastructure team is looking into this, we will give an update as the investigation and resolution progress.
[RESOLVED]
There was an external service that the API fetches some data from that had an outage hence causing the timeouts whe the API calls were getting processed.