[stephenrussett]

In the WBS structure and you have the Constraint Start and End columns and you try to remove a constraint by removing the date directly in the WBS rather than using the inspector, the date will not clear. You erase the date and then press enter and the date reappears. You should be able to change any date in the WBS. For example we can already adjust the dependencies by erasing the numbers in WBS but dates seem to be problematic.