Create a class, right click on it, choose Create Parent / Package. Click Undo twice (the first undo seems to restore the package size), the package gets deleted together with the class. This is unexpected, the proper undo behavior would be to extract the class back from the package and delete just the package. Click Redo, the package appears again on the diagram, however the class does not (though it is re-created, as it can be seen in the Diagram Navigator).
Thank you for reporting this problem. I am going to notify our engineers about this. Once this is solved, I will post again.
Meanwhile, please let me know if there are any other issues.
Have a nice Friday and weekend!
The problem of undo and redo is fixed and deployed as a hotfix. You can download the fixed release at:
The following page teaches you how to replace the hotfix:
I will post again when a complete release is ready.
The complete build ‘build_20060707’ is released. Please run the updater (inside $vp-suite-install-dir/bin) to advance from the hotfix release to this build.