What happened
Media not ready. For example: Media c7d2a9e4 is still processing.What to do
Wait for the media_import job: GET /v3/jobs/{job_id}?wait_seconds=20.wait: work in progress blocks the request; wait for it to end, then retry.
same_key: resend the same request with the same Idempotency-Key (after Retry-After when given).