Hi Adam! This usually happens when the Central Admin component has not been started.
- Wait about five minutes
- Check again if the user profile is available in the Work with Members screen
It's also a good idea to include this in the system start-up program, à la:
/**** Start of section "Central Administration start-up" ****/
QSYS/MONMSG MSGID(CPF0000 PLK0000)
/**** End of section "Starting Central Administration" ****/