If I make a new menu item in 10.2.300, then I can see all the customizations.
Odd thing that has me slightly worried … I upgraded a 10.1.400 system to 10.2.300, and those system menu items show (and launch) the customization assigned in 10.1.400
System Menu Item (Product Group) in 10.2.300, when the customization was assigned in 10.1.400
Calvin,
Our test server is a 10.1.600 upgraded to 10.2.400. Our Job Closing form was the base form from 10.1.600 and I saved two customizations in 10.2.400 and the only customization that showed up in the drop down menu was the customization checked for All Companies. Not sure if that is what you’re seeing.
I think the base menus are now only “All Companies”. For On Premise clients, I normally ensure the customization is “All Companies” too to avoid this issue.