This is Ahmed Mamdouh from the translation proxy team and I'm here to help you with this issue.
I checked our logs between the translation proxy and SDL and I found that there is an error related to the Language ISO codes, in simple words the language pairs configured for your project in SDL are as follows:
en-GB =>"fr-FR", "de-DE", "es-ES"
but in WPML the language ISO codes are:
en => "fr", "de", "es"
And that's why the jobs are reverted back and canceled because the ISO codes should be identical.
So I added the needed mapping between the ISO codes to solve this issue, so supposedly it's working fine now.
Please try to re-send the jobs again and let me know how it goes.
Best regards,
Ahmed Mamdouh.
This ticket is now closed. If you're a WPML client and need related help, please open a new support ticket.