Sep
18th
Fri
18th
We’re working on a bug whereby the default avatar is showing up for users who have previously uploaded their own image. We hope to resolve this soon.
Update (5:30p): We’ve identified the root cause of this problem and expect the issue to be resolved within the next several hours.
We are currently working on a critical bug whereby some tweets from users you follow may not appear in your timeline. This bug particularly affects the delivery of tweets from users you follow that themselves have a large number of followers.
We plan on deploying the first part of the fix for this bug tomorrow morning and will update status thereafter.
Update: We deployed a fix for one of the underlying problems and are assessing its success.