Not sure about your procedure, but I really think this has to do with the embedded library. When you add a single object to your project, a copy of it is "nested" inside the project file, and somehow detached from the original one. If you later modify the EXTERNAL object, this is not read from the current project, that continues using the embedded one.
Go to the Library manager, and delete the local copy of the object, then load it again.
_________________
--Roberto Corona--
www.archiradar.com
AC18 - ITA full on Win10
_________________
_________________