Hi,
With the new versión 5.5.0 of AU I observed the same Fix Invalid Shortcut issue described in the post http://www.acelogix.com/forums/viewtopic.php?f=2&t=4158 which was not fixed yet, in spite of the text in "Changes in v5.5.0 - Sep 30 , 2013" where is "Fixed an issue in the 'Fix Invalid Shortcuts' related to multiple user accounts."
Thanks for your comments
Regards