When debugging a trigger, if a watch is added to a :new or :old variable, or mouse is hovered over these variables, then Toad hangs.
Using the DBMS Debugger, when adding watches or hovering cursor over :NEW and :OLD variable, will issue an INSERT statement on that table and Oracle waits for the trigger to fire off, hence it generates an ORA-03113 error it goes into a hanging stage.
WORKAROUND:
None
STATUS:
Waiting for fix in a future release of Toad for Oracle
