Twitter api + OAuth 'random' 401 error

I have just switch to OAuth

I'm using

• the O开发者_如何转开发Auth exemple code from http://www.voiceoftech.com/swhitley/index.php/2009/03/twitter-oauth-with-net/

• single user token link text

• accounts are set to read-write( I'm testing with 3 account : test , news and jobs)

• I have configured my subdomain also

Test works fine, news never works, jobs works sometimes

when it fails I get an error 401 Unauthorized.

I did try to delete and recreate the applications

My main issue is why does it work sometimes and not other times? Is it my mistake or is twitter having issues.

An other issue that might not be related, when I look at my tweet, I don't see the same tweets if I'm logged in or not.