Thanks for letting us know about the errors you have encountered. We are seeing an increased level of errors of that nature today I have forwarded the details you provided to our engineering team to aid their investigation. The errors are not particularly widespread, but we expect to be able to make some adjustments in the near future that will stabilize things.
Also, the last several messages added to this thread have been related to specific errors unrelated to the behavior several users were reporting when the thread was started so I have closed the thread. If you would like to discuss any current issues, please feel free to start a new thread.