Read/write app is sometimes denied read access

[Mike Travers]

I have an application that has read/write access, which tries to
create friendships. Sometimes this works and sometimes it doesn't.
Ie, when authenticated as mtraven, it works fine, but when
authenticated with the test account mtraven_tunes, I get consistent
errors like this:

request: /friendships/create.json?screen_name=3QD
Error from Twitter: Read-only application cannot POST

I have cleared out all of the cookies for both twitter and my app so I
don't think the problem can be a stale authentication token (the app
was originally read-only).

I'm kind of baffled by this, but perhaps there is some simple
explanation.
The app in question is at http://twitlines.net/blogs

Thanks,
Mike

[Mark McBride]

Have you tried revoking your current access token, and then re-authenticating?  In the settings -> connections page does it show your app as approved for read and write access?

  ---Mark

http://twitter.com/mccv