Hi,
I have the same problem.
I see the table TUTYPA appears all license type, but if select the custom field from request only appears some.
In the SAP table TUTYPA only some License type is active.
My sistem es GRC 10 SP 15.
The next figure, in red some license type appears in the request. The license type 51, 52, 53 etc NOT appears in the request.