Quarto manuscripts: Code chunks and Figure divs can't coexist

[m-delem]

Bug description

First, thank you for the new Manuscript project type, such a synthesis of Quarto's amazing features looks very promising!

Now, I wanted to report a bug I encountered today: my index.qmd file wouldn't render when I added a simple code chunk, even as barebones as

```{r} 
library(tidyverse)
```

Rendering (or previewing) the index.qmd returned the following error:

processing file: index.qmd
                                                                                                            
output file: index.knit.md

Rendering qmd embeds [index.qmd]
Error running filter C:/Users/Mael/AppData/Local/Programs/Quarto/share/filters/main.lua:
...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:835: attempt to call a nil value (field 'render')
stack traceback:
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:302: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:292>
	(...tail calls...)
	[C]: in ?
	[C]: in method 'walk'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:224: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:214>
	(...tail calls...)
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:936: in local 'callback'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:954: in upvalue 'run_emulated_filter_chain'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:990: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:987>
stack traceback:
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:224: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:214>
	(...tail calls...)
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:936: in local 'callback'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:954: in upvalue 'run_emulated_filter_chain'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:990: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:987>

All my code chunks ran very well in all my companion notebooks located in notebooks/, while index.qmd also rendered correctly without any code chunk.
After hours searching for the culprit in packages, files, yaml, and everywhere, I ended up trying to delete everything else in my index.qmd file out besides code chunks... and index.qmd rendered well with the code chunks. So I built back my file brick by brick, and found out that the only thing that interfered with the code chunks and made the error reappear was a simple figure div with two figures of mine.

I managed to reproduce the error in the manuscript-template from the Quarto manuscript tutorial, simply adding the following div:

:::{#fig-test layout-ncol=2}

![Map of La Palma](images/la-palma-map.png)

![Map of La Palma](images/la-palma-map.png)
:::

Steps to reproduce

The folder structure and files associated with the manuscript-template were cloned from https://github.com/quarto-ext/manuscript-template-rstudio. Nothing was changed besides the experiments done on index.qmd.

I managed to reproduce the bug even with an index.qmd file as simple as this:

---
title: La Palma Earthquakes
---

## Introduction

```{r}
eruptions <- c(1492, 1585, 1646, 1677, 1712, 1949, 1971, 2021)
n_eruptions <- length(eruptions)
```

:::{#fig-test layout-ncol=2}

![Map of La Palma](images/la-palma-map.png)

![Map of La Palma](images/la-palma-map.png)
:::

(This is my first ever bug report, so tell me if anything is missing!)

Expected behavior

A simple HTML should be rendered with both a (non-echoed) code chunk and a figure div with two side-by-side figures.

Actual behavior

The following error happens during preview or render:

processing file: index.qmd
                                                                                                            
output file: index.knit.md

Rendering qmd embeds [index.qmd]
Error running filter C:/Users/Mael/AppData/Local/Programs/Quarto/share/filters/main.lua:
...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:835: attempt to call a nil value (field 'render')
stack traceback:
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:302: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:292>
	(...tail calls...)
	[C]: in ?
	[C]: in method 'walk'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:224: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:214>
	(...tail calls...)
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:936: in local 'callback'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:954: in upvalue 'run_emulated_filter_chain'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:990: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:987>
stack traceback:
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:224: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:214>
	(...tail calls...)
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:936: in local 'callback'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:954: in upvalue 'run_emulated_filter_chain'
	...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:990: in function <...ael/AppData/Local/Programs/Quarto/share/filters/main.lua:987>

Your environment

RStudio version 2023.12.1+402
R version 4.3.2 (2023-10-31 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 11 x64 (build 22631)

Quarto check output

Quarto 1.4.549
[>] Checking versions of quarto binary dependencies...
      Pandoc version 3.1.11: OK
      Dart Sass version 1.69.5: OK
      Deno version 1.37.2: OK
[>] Checking versions of quarto dependencies......OK
[>] Checking Quarto installation......OK
      Version: 1.4.549
      Path: C:\Users\Mael\AppData\Local\Programs\Quarto\bin
      CodePage: unknown

[>] Checking tools....................OK
      TinyTeX: v2023.12
      Chromium: (not installed)

[>] Checking LaTeX....................OK
      Using: TinyTex
      Path: C:\Users\Mael\AppData\Roaming\TinyTeX\bin\windows\
      Version: 2023

[>] Checking basic markdown render....OK

[>] Checking Python 3 installation....(None)

      Unable to locate an installed version of Python 3.
      Install Python 3 from https://www.python.org/downloads/

[>] Checking R installation...........OK
      Version: 4.3.2
      Path: C:/PROGRA~1/R/R-43~1.2
      LibPaths:
        - C:/Users/Mael/AppData/Local/R/win-library/4.3
        - C:/Program Files/R/R-4.3.2/library
      knitr: 1.45
      rmarkdown: 2.25

[>] Checking Knitr engine render......OK

[cscheid]

Thanks for the report. I can repro it. We'll fix immediately.