Custom coordinate system: no elipsoide recognized.

Hi,

I have used the online tool to create a custom coordinate system. I use the WKT, where among other parameters, the ellipsoid is defined:

........

SPHEROID["GRS 1980",6378137,298.257222101,

........

I also select GRS80 as elipsoid in here :

I unzip the generated files at the "FME" folder inside the "Documents" folder, as stated:

But when I go to the "Reprojector" transformer and search for my new custom coordinate system, I see that there is no defined ellipsoid:

So, when I run the process, there is an error:

What is going on?

Thanks!