When I do a grouping on project in the DO section, I see that the title of the group and the actions are not in sync. On a group called "KLUS012" actions from "KLUSxx" are shown.
I have the feeling that it occurs after you have checked off an action today, but...
...when I press SYNC and apply the sorting again, it doesn't solve the problem.
...when I restore the data, select an area and apply the sorting again, it gets real messy as groupnames are from other areas.
My conclusion: grouping on project is not workable for me yet.