We have an app that runs searches regularly, and recently stopped receiving new tweets. After investigating we found a search combination that seems to break the search API. Instead of getting a response with no tweets, an .atom request errors and a .json request 404s.
http://search.twitter.com/search.json?q=from:silent_tester02&since_id=4979161317 http://search.twitter.com/search.atom?q=from:silent_tester02&since_id=4979161317 Changing the query to not use from:username works as expect, but I've put several usernames in and they all respond the same way. I haven't managed to narrow down the cause of the problem much further than that, but we're handling it in our code by rescuing any failed searches and appending since: with the date of the most recent tweet to the q. Any thoughts on what might be causing this would be appreciated.
