Error using sortable in Quarto documents

[saudiwin]

I am able to include sortable elements produced by rank_list in interactive mode in a Quarto document, but rendering files produces the following error:

processing file: test_sortable.qmd
  |..........................................          |  80% [test_sort]      Error in `validateCssUnit()`:
! "NApx" is not a valid CSS unit (e.g., "100%", "400px", "auto")
Backtrace:
  1. global .main()
  2. execute(...)
  3. rmarkdown::render(...)
  4. knitr::knit(knit_input, knit_output, envir = envir, quiet = quiet)
  5. knitr:::process_file(text, output)
     ...
 16. base::withRestarts(...)
 17. base (local) withRestartList(expr, restarts)
 18. base (local) withOneRestart(withRestartList(expr, restarts[-nr]), restarts[[nr]])
 19. base (local) docall(restart$handler, restartArgs)
 21. evaluate (local) fun(base::quote(`<smplErrr>`))

I have tried with both the CRAN and development version of sortable. A stub Quarto document to reproduce the error is below:

---
title: "test_sortable"
format: HTML
server: shiny
---

library(sortable)

rank_list(
  text = "Notice that dragging causes items to swap",
  labels = c("Fish","Bread","Apples"),
  input_id = "rank_list_swap",
  options = sortable_options(swap = TRUE)
)

My sessionInfo is as follows:

R version 4.4.2 (2024-10-31)
Platform: aarch64-apple-darwin20
Running under: macOS Sequoia 15.0

Matrix products: default
BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/4.4-arm64/Resources/lib/libRlapack.dylib; LAPACK version 3.12.0

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

time zone: America/New_York
tzcode source: internal

attached base packages:
[1] stats graphics grDevices utils datasets methods base

other attached packages:
[1] sortable_0.5.0.9000 shiny_1.9.1 glue_1.7.0 surveydown_0.7.2

loaded via a namespace (and not attached):
[1] jsonlite_1.8.8 compiler_4.4.2 promises_1.3.0 Rcpp_1.0.13
[5] assertthat_0.2.1 callr_3.7.6 later_1.3.2 yaml_2.3.10
[9] fastmap_1.2.0 mime_0.12 R6_2.5.1 commonmark_1.9.1
[13] curl_5.2.2 knitr_1.48 htmlwidgets_1.6.4 desc_1.4.3
[17] rprojroot_2.0.4 rlang_1.1.4 httpuv_1.6.15 xfun_0.47
[21] fs_1.6.4 cli_3.6.3 withr_3.0.1 magrittr_2.0.3
[25] learnr_0.11.5 ps_1.8.0 digest_0.6.37 processx_3.8.4
[29] rstudioapi_0.16.0 xtable_1.8-4 markdown_1.13 remotes_2.5.0
[33] lifecycle_1.0.4 evaluate_1.0.1.9000 pkgbuild_1.4.4 tools_4.4.2
[37] htmltools_0.5.8.1