Table dropdown doesn't show Global tables from a scoped application.

[Raheem Pp]

I have created a table Table1 which is in global scope extends application files(Same like Business Rule table). And I have created a field Field1 of type Table Name for the same table. Now when I try to create a record in the table Table1 from my private scope, the table dropdown  for the Field1 doesn't show the global tables from the private scope. It only shows tables from the same scope. But when I go to business rule, I am able to pick all the global tables from the same scope. Can anyone know how does it act different? I replicated almost everything from BR table like application access and other configs etc. 

[Jack M Scotty]

Unfortunately, I'm getting an error now when trying to add the allow_public attribute to the Table field on the Dictionary Override [sys_dictionary_override] table that says "only maint" is allowed to add it... sigh.

"Error Message: The attribute 'allow_public' cannot be added to a system Dictionary Entry record unless maint"