Hello,
I with some locked report, when I click now on the unlock button, nothing happen. I d'ont even have the password dialog.
But if I try to execute the reports, it works as usual.
What tricks do I miss as I need to retrieve the original SQL.

This report is probably only unlocked when connected as the user from the report options.

Is there a way to know who is the user in report options ?

No, this information is unfortunately not visible. You can only view or edit the report definition when connected with the user from the report definition.

If you are just needing the original SQL, I found the reports in %APPDATA%/PLSQL Developer Common. Then I can open it with a text editor and the SQL is there.