SOLVED !
Hi, I found the solution, hope my feedback will be useful to your fantastic program.
As mentioned, I had Vjoy 2.2.0 version because the 2.2.1 freezed at the end of the installation (even if it worked) while the 2.2.0 finish the installation in a clean way.
After numerous attempts (more virtual joysticks, some with axis, others without, and so on...) I noticed that in your video you have J2Vjoy v 1.03, the latest one, but VJoy version 2.1.8.
So i installed Vjoy version 2.1.9, and everything works fine. Then, for scientific validity, 2.2.0 and 2.2.1 again, but Joy2Vjoy does not dialogue with these latest versions (maybe because 2.2.0 introduces many more virtual axes?).
Then reinstalled the 2.1.9 and repeated the cycle several times:
Joy2Vjoy works correctly up to Vjoy version 2.1.9 (this with or without freeze at the end of the installation).
Good hunt!
Berto72