Fujifilm GFX 50R mount adapter setting not working

[JpP 11]

Hi guys

Not too many topics about the 50R ... Nevermind ... Well, I need some help about the problem as exposed in the tittle :  In the GFX 50R menus, there is an option for customizing lenses from other brands one can use with an adapter ring. Same as with the X-T series.

No problem for declaring the focal lenght, works fine; the hitch is on the next lines which remain greyed out, and thus not usable (adjusting vignetting, distortion, color ...) Nice things but out of reach !

Disregarding this problem, the adapter (Fotodiox Pro) works fine with some of my old Nikkor's.

Does some one out there have an idea ?

Thanks in advance,

Regards

JpP

Edited January 12 by JpP