In Version 4.0 we rewrote a large part of the add-on so that the performance is much better, especially on large instances. So the old data will be migrated to the new Viewtracker Datastructure.
- Only valid users will be migrated. Old views, where the user can't be found anymore aren't migrated.
If the Viewtracker macro is working well and just the Reports of the Space Usage are missing, please verify that you have installed the required dependencies for this optional feature: