Error 400 creating a Custom Timeline


I’ve been trying to create a Custom Timeline unsuccessfully for a couple of days. Both in Apigee console and TweetDeck I always get the same error response code 400, despite being authenticated. Other teammates have successfully created it at the first attempt, so it could be an issue with my user.

This is the Apigee request/response:

POST /1.1/beta/timelines/custom/create.json HTTP/1.1
Content-Length: 0
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Connection: Keep-Alive

HTTP/1.1 400 Bad Request
content-type: application/json;charset=utf-8
x-frame-options: SAMEORIGIN
last-modified: Thu, 23 Jan 2014 09:12:40 GMT
status: 400 Bad Request
date: Thu, 23 Jan 2014 09:12:40 GMT
x-transaction: 48375057dbbc4598
pragma: no-cache
cache-control: no-cache, no-store, must-revalidate, pre-check=0, post-check=0
x-xss-protection: 1; mode=block
expires: Tue, 31 Mar 1981 05:00:00 GMT
set-cookie: lang=en
set-cookie: guest_id=v1%3A139046836005111806;; Path=/; Expires=Sat, 23-Jan-2016 09:12:40 UTC
content-length: 50
server: tfe
strict-transport-security: max-age=631138519
x-access-level: read-write-directmessages

“errors”: [
“code”: 214,
“message”: “Bad request.”