V-Ray 3.50.03 - VRayFur Disabled?

[Santiago_X64]

I'm testing the new version of 3.50:03 with a scene with VRayFur ...
VRayFur not work ..
On the version of 3.50.03, VRayFur is disabled?
Thank you.

EDIT
I did some testing with VRayFur saved with older versions of vray (taken from an old file), and VRayFur not work with ipr and render in production mode.
However, if I apply a new VRayFur, it works again ...