Hi Hrvoje, hi Bobby,
Thanks for your answers,
I've made what you describe, and I give you the resuls in attach files.
First, the Client-clientid is the same,
then I do what Bobby suggest to do : identify if the saveset is incomplete ( case esg118286)
the result of it is in attach file SSID168.csv
Maybe the problem is here, 'cause I didn't see fragment with a first value of 0, so the true head volume is missing ?