Hello eveyone and @PimaxQuorra
This issue was present at first with the 8k and was fixed with later version of pitool/firmware but looks like the Artisan is suffering of the detection issue.
Even with the 8K I was able to make it detected by Restarting service, unplugging it, turning it off but no way with the Arti, I have to reboot my computer if it is not detected.
If I turn it on after my PC booted or after using it, if I turn it off, I have to reboot to make it detected again.
Well, IT IS detected but LED remain RED and screen black.
After a reboot everything it fine.
But this is seriously annoying.