I believe this may be the same as bug #12756.  

This can now be reproduced as follows:

Open project which is sample graphical application.
Click on Toolbar Options of Address toolbar and select Customize.
Click on Feature Label item and click Remove.  Click OK.
Click on Toolbar Options of Address toolbar and select Customize.
Click on Feature Label item and click Add.  Click OK.
Usually repeating this a sequence of removing Feature Label from Address toolbar
   and then adding it back once or twice will cause a crash with the previously
   attached trace.