Yes this is expected, as I changed the widget unique ID to include the custom parameters (to allow multiple goal reports widgets, which are loading the same controller/action but with a different idgoal).

I think the only affected widget is 'Last Visits graph'.

Not sure if it is easy to automatically fix this..

vote for won't fix, if you have a patch please submit

I thought the layout code handled disabled/nonexistent widgets? If we antipcipate more widget id changes in the future, then I would prefrr to see this fixed. But agree that this should be mentioned in the 0.6.3 release notes, if not.

code handles widgets that are from disabled plugins, or widgets that don't exist. But this case is different: we changed the 'key' hash for plugins, and the last visits plugin includes custom parameters (that are now included in the hash). This could be fixed with a hack but I added thenotes in the changelog that user can manually re-add the widget.