2859046 - Dump UNCAUGHT_EXCEPTION during Firefighter Logon

When trying to Logon using a FFID, the below dump occurs:

Category ABAP programming error

Runtime Errors               UNCAUGHT_EXCEPTION
Except.                          CX_GRFN_EXCEPTION
ABAP Program                GRAC_SPM_LOGON_PAD
Application Component    GRC-AC

Error analysis
An exception has occurred which is explained in more detail below. The
exception is assigned to class 'CX_GRFN_EXCEPTION' and was not caught in
procedure
"CHECK_FFOBJECT_LOGON" "(FORM)", nor was it propagated by a RAISING clause.
Since the caller of the procedure could not have anticipated this
exception, the current program was terminated.

SAP Access Control 12.0

Firefighter, Logon, Dump, Uncaught Exception, Text Object , KBA , GRC-SAC-EAM , Emergency Access Management , Problem