Twitter is experiencing issues with chunked media uploads through the API. The following error will be returned at the FINALIZE step: {“error”:“Invalid or unsupported media, Reason: UnsupportedMedia.”}. This only affects chunked uploads (uploads with more than one segment). We will update this thread when the situation is resolved.
Thanks!
The issue affecting chunked media uploads is now resolved. If your team is still experiencing separate media upload issues, please let us know in a separate thread.