I’ve noticed a change as well.
In the past, if Sonic was set to accept program changes (I.E. GM Mode) in the ‘Options Tab’, the “instrument” cell in a track inspector would cause a pop up menu with 128 choices.
These days I just get Media Bay if I click on this cell, and while my Program Choice loads in Halion to the proper channel and all, the cell remains ‘blank’ after making a choice.
Same for Halion 5. I used to get a pop-up with the first 128 Halion Presets in the 'Program Tree", but something has changed here and I’m not sure what caused it. Maybe one of the service updates to Cubase?