I'm debugging a stored procedure and SQL Developer displays all my variables but almost every value shows up as NULL. Fiddling with settings, I've discovered that adding the "Hex Value" column makes actual values finally show up in "Data" tab but not in "Smart Data" or "Watches". I also seem some other glitches such as one same variable (a cursor rowtype) being listed twice.
Is the builtin debugger meant to be fully functional? Are there known issues or incompatibilities? Am I missing something?