Hi,
We are experiencing unpredictable but fairly regular errors when using the .NET library to retrieve adgroup, keyword, etc statistics from views. There doesn't seem to be a pattern of reports or accounts that causes the errors, it's different every time the process is run, but there are always at least a handful of exceptions thrown during execution. Retrying the call will usually succeed the second time, however it is fairly common to see a report call fail repeatedly and not recover until some time has passed. The only constant is that the very first report call we make almost always fails with DEADLINE_EXCEEDED, then succeeds, we may still see another error of this type shortly afterwards however. I can provide some request logs in a reply.