Hello, Is it possible to check that all the Tasks are still in order by
clicking into the grey column header above tasks with a hash mark &
arrow? Clicking in here restores the correct order which can get mixed
up when you are setting up & moving tasks about. Another area to check
is if you have a Filter, View or Grouping in use as this can also
prevent the parent/child tasks displaying as expected and removes the
options to indent when you right click etc Hope this helps!