Just to say THANKS all who helped me on my issues. 
So i followed your advices and I decided to use this technique instead:
It works, it’s stable, no more fucking « file not found », more reliable, practical and faster.
It’s a bite long and like @sezare56 said in the French forum it’s gave an headache to make the entire process from A to Z (i use ableton and Octachainer) BUT when your megabreak of doom works it’s just awesome 
Thanks again all for your time and your help 
