I have a FieldFox N9912A with the older CPU, current firmware is installed - A.08.18.
When I am in Network Analyzer mode and select marker function "Big Readout A or B" I get an error tone and a pop up which says "Error: 36, The requested functionality is not licensed.". However the larger readout does seem to be displayed. I don't recall ever seeing any license option for a big readout.
Unless there is something I am missing please add this to your list of bugs to be fixed(If you are still updating the original CPU model - let's hope you are as there are a lot in use).
For your info I have the following options licensed/installed:
308: Vector voltmeter
303: Network Analysis Capability
302: External USB power sensor support
236: Interference analyzer
110: Transmission meaurement
235: Preamplifier for spectrum analysis capability
231: 6 GHz spectrum analyzer
106: 6 GHz cable and antenna analyzer
A screen shot captured with the Remote Display software is attached.