In this simple quarto project, the presence of the last hidden slide causes the footers on all the slides to disappear.
13:16 $ quarto check
[✓] Checking versions of quarto binary dependencies...
Pandoc version 3.1.1: OK
Dart Sass version 1.55.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
Version: 1.3.450
Path: /opt/quarto/bin
[✓] Checking basic markdown render....OK
[✓] Checking Python 3 installation....OK
Version: 3.8.3
Path: /home/apn/sw/bin/python3
Jupyter: 4.10.0
Kernels: julia-1.8, python3
[✓] Checking Jupyter engine render....OK
[✓] Checking R installation...........OK
Version: 4.3.1
Path: /usr/lib/R
LibPaths:
- /home/apn/R/x86_64-pc-linux-gnu-library/4.3
- /usr/local/lib/R/site-library
- /usr/lib/R/site-library
- /usr/lib/R/library
knitr: 1.43
rmarkdown: 2.24
[✓] Checking Knitr engine render......OK