Tasks Bugs

It appears that there is a new version of Tasks. However, there are some serious bugs:

Whenever I change the status of a task from 'Needs Action' to 'Completed' and save, the change is never saved.
When I view tasks for a Personal Category and then click on one of 'Pending', 'Completed' or 'Cancelled', tasks with that status from all catagories are displayed instead of only task from the personal category I had selected.