discontinuity in API createjob json return

On https://allgo.inria.fr/ creating a job with the API result in :
{"avg_time":30,"id":70550,"url":"https://allgo.inria.fr/api/v1/jobs/70550"}

On https://allgo18.inria.fr/ creating a job with the API result in :
{"139": {"files": {}, "status": "waiting"}}

The return is totally different and I thought there should be a continuity.

The "get job status" API has also a different response.
On https://allgo.inria.fr/ :
{"70550":{"allgo.log":"https://allgo.inria.fr/datastore/475/202/9505a65ead90d2cc6fd016b2b580c0eba4a0b2ff/allgo.log"},"status":"error"}

On https://allgo18.inria.fr/ :
{"1": {"files": {"allgo.log": "https://localhost/datastore/1/allgo.log"}, "status": "done"}}