SQL Developer

1. type a query using a schema qualifier. for example, select * from sys.dba_objects;
2. delete the '*' and press ctrl+space to show the column list popup.
   
3. select a column name from the list.
4. it doesn't populate column names(s) in the query

It works fine in 20.2
It works in 20.4 if you don't use a schema qualifier. Unfortunately, no schema qualifier is a no go for me.

SQL Developer version 20.4
OS: Windows 10
DB: 12.2.0.1