Given a slightly simplified` _quarto.yml`:

```diff
book:
  title: "quarto-design"
  repo-url: https://github.com/dpastoor/quarto-design
  repo-actions: [edit, issue]
  chapters:
    - "index.qmd"
+     - part: user-journeys.qmd
+      chapters:
+        - rsc-user-journeys.qmd
  appendices:
     - appendix.qmd
-    - user-journeys.qmd
 ```

when making that shift, get the following:

```
GET: /user-journeys.html
ERROR: Book chapter 'rsc-user-journeys.qmd' not found # note then created it
GET: /user-journeys.html
```

the preview continues to work, but the chapter sidebar continues to render with user-journeys.qmd in the sidebar. 

**solution:** takes exiting and restarting quarto preview to pick up the change.
2022-02-17T18:07:02Z
dpastoor
Future
open
moving a document from appendices to a chapter does not render/move article in sidebar for book
https://github.com/quarto-dev/quarto-cli/issues/348