In Project Manager, if you CTRL-click to choose several objects of different object types, then choose [Create Script], the object types appear uniform across all objects when they're not. So if you select a procedure first, then a package, the package will list as type "Procedure". Then when you click Save, it doesn't find it as a procedure and the script is not created.
WORKAROUND
none
STATUS
Waiting for fix in a future release of Toad for Oracle