Zustand question in next js

i have this code
export const useTaskStore = create<State & Actions>()(
  persist(
    set => ({
      tasks: [],
      draggedTask: null,
      addTask: (title: string, description?: string) =>
        set(state => ({
          tasks: [
            ...state.tasks,
            { id: uuid(), title, description, status: 'TODO' }
          ]
        })),
      dragTask: (id: string | null) => set({ draggedTask: id }),
    }),
    { name: 'task-store', skipHydration: true }
  )
)
and
export default function Column({
  title,
  status
}: {
  title: string
  status: Status
}) {
  const tasks = useTaskStore(state => state.tasks)
  const filteredTasks = useMemo(
    () => tasks.filter(task => task.status === status),
    [tasks, status]
  )
  const updateTask = useTaskStore(state => state.updateTask)
  const dragTask = useTaskStore(state => state.dragTask)
  const draggedTask = useTaskStore(state => state.draggedTask)
  useEffect(() => {
    useTaskStore.persist.rehydrate()
  }, [])

  const handleDrop = (e: React.DragEvent<HTMLDivElement>) => {
    if (!draggedTask) return
    updateTask(draggedTask, status)
    dragTask(null)
  }
  return (
    <section className='h-[600px] flex-1'>
      <div
        className='mt-3.5 h-full w-full rounded-xl bg-gray-700/50 p-4'
        onDrop={handleDrop}
        onDragOver={e => e.preventDefault()}
      >
        <div className='flex flex-col gap-4'>
          {filteredTasks.map(task => (
            <Task key={task.id} {...task} />
          ))}

          {filteredTasks.length === 0 && status === 'TODO' && (
            <div className='mt-8 text-center text-sm text-gray-500'>
              <p>Create a new task</p>
            </div>
          )}
        </div>
      </div>
    </section>
  )
}
so, here i can add task and drag and drop, but if i delete
  useEffect(() => {
    useTaskStore.persist.rehydrate()
  }, [])
and
 skipHydration: true
still works the same, why ?
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