Media ids and twitter4j - error 324



I’m posting to my account 4 images using twitter4j without an issue (around 30k each 200x200px)
When our user posts with the same code and the same images, the post fails:
…In API v1.1, a request without authentication is considered invalid and you will get this response. message - The validation of media ids failed. code - 324

based on twitter4j there should not be an issue with media_id (do not need to use media_id_str).

Any idea what can cause the difference?