Hi Don
Can you try ST01/05 in the satellite?
Have you tested your RFC connection is working (including trusted systems in place). Apologies if you think questions are pointless since you mentioned you followed course material.
In switching between centralised and decentralised did you changer the 4010 (?) configuration parameter
In the satellite system are you able to check SM04/AL08 to see if the FF session is there? Possibly might need to be killed.
in centralised mode, when you attempt to login to FF (go into the cockpit, choose FF Id and enter reason code and press enter) - this is where screen meant to open. have you tried minimising SAP GRC and you screens to see if there is an error message on your desktop? You should still have the GRC screen but a new session is meant to open with the FF session.
What SP and Basis stack are you on?
Cheers
Colleen