When you generate a year planner of processes and subsequently change the data from within the year planner (vdx), that data does not update the solution xml of that particular map. (i.e. responsiblity and date that the process runs). This needs to happen otherwise the dialog on right click properties within the year planner is obsolete.
Follow the link to the process map and then right-click the Node of the process map to update the changes. Save the process map.