I recently upgraded from APEX 4.1 to 4.2. All went well except I could no longer get edit links to show up on pages launched from the APEX Administration Application.
After a few days of back and forth with support I was provided this little snippet that fixed the problem.
Not sure how or why but I'm looking into it and will update this page with any new info.
This is a result of
bug#16769040 - DEVELOPER TOOLBAR IS MISSING AFTER UPGRADING TO 4.2.2
I was told to ONLY run this if you are on 4.2.2.00.11. Use at your own risk!
Run the following code as SYS or APEX_040200
begin
apex_040200.wwv_flow_security.set_internal_cookie_name;
commit;
end;
/
