Solved the problem ! Can't write the solution now (no time), will do it later

It is just to say that I solved the problem. I will post my detailed solution
later on this forum. Random readers will probably not be interested, but I will
post it for all the people that helped me to solve it (I read somewhere that it
is the way to act on forums when you solved a problem…). Thank you again for
your precious help.

ESPOSITO Julien