quarto markdown list and blank line

Weird. Here is my code

---
title: "Exercise 2"
author: "John"
date: "`r Sys.Date()`"
date-format: iso
number-sections: true
format: pdf
header-includes:
  - \usepackage{lipsum}
  - \usepackage{sectsty} \allsectionsfont{\centering}
editor: visual
bibliography: Roman.bib
csl: apa.csl
---

It was a dark and stormy night.

### Five

-   item 1
    -   sdh
    -   tthd
        -   ndh
    -   sitem
-   item

### Six
* unordered list
    + sub-item 1
    + sub-item 2
        - sub-sub-item 1
    + sub-time 3
* unordered list
* unordered list