My code sends a few thousand tweets per day and since 13 November, I am seeing a handful of these requests fail with a 401 Unauthorized failure. The overall failure rate is less than 1%, so it is puzzling as to what may be happening. Anybody else seeing this or know what may have changed on that date? thank you!
We’re working to resolve this, thanks for the report. At least one host in a pool was not processing requests correctly.