KFocus

If you have more than one project defined in the same file any time
something changes in "Task" tab the project names change positions in the
left-side list.

it doesn't what the change is. Editing a task title or comment makes the
names change order every time a character is added/deleted, moving a task
up/down changes the project name order every time the arrow button is
pressed.

This does not affect the functionality, it is merely a display bug.