The topic directive renders as a blank box.

🔍 Before submitting the issue

[X] I have searched among the existing issues
[X] I am using a Python virtual environment

🐞 Description of the bug

Previously, the title and contents of a .. topic:: directive was rendered as text within the gray topic box.

Example: Electric Machine Thermal customer doc

(https://expert-adventure-19g81ev.pages.github.io/_sources/user_guide/motor_cad_analysis.html):

In version 0.13.3, the title and contents are are no longer shown in the output.

Example: Solution developer's guide

(https://dev-docs.solutions.ansys.com/version/dev/getting_started/quick_start.html#quick-start)

📝 Steps to reproduce

To an RST file, add a .. topic:: directive with title and content.
Generate the documentation and check the output.

The issue is present in the output for both local doc builds and GitHub builds using the ansys-internal/solution-applications-actions/build-doc@v11 action.

💻 Which operating system are you using?

Windows

📀 Which ANSYS version are you using?

NA.

🐍 Which Python version are you using?

3.10

📦 Installed packages

Package                       Version
----------------------------- -----------
accessible-pygments           0.0.4
alabaster                     0.7.16
ansys-sphinx-theme            0.13.3
apeye                         1.4.1
apeye-core                    1.1.5
attrs                         23.2.0
autodocsumm                   0.2.12
Babel                         2.14.0
beautifulsoup4                4.12.3
bleach                        6.1.0
CacheControl                  0.14.0
certifi                       2024.2.2
charset-normalizer            3.3.2
click                         8.1.7
colorama                      0.4.6
cssutils                      2.9.0
defusedxml                    0.7.1
dict2css                      0.3.0.post1
dnspython                     2.5.0
docutils                      0.20.1
domdf-python-tools            3.8.0.post2
fastjsonschema                2.19.1
filelock                      3.13.1
html5lib                      1.1
idna                          3.6
imagesize                     1.4.1
importlib-metadata            7.0.1
Jinja2                        3.1.3
jsonschema                    4.21.1
jsonschema-specifications     2023.12.1
jupyter_client                8.6.0
jupyter_core                  5.7.1
jupyterlab_pygments           0.3.0
LinkChecker                   10.4.0
MarkupSafe                    2.1.5
mistune                       3.0.2
msgpack                       1.0.7
natsort                       8.4.0
nbclient                      0.9.0
nbconvert                     7.15.0
nbformat                      5.9.2
nbsphinx                      0.8.12
numpydoc                      1.6.0
packaging                     23.2
pandocfilters                 1.5.1
pillow                        10.2.0
pip                           24.0
platformdirs                  4.2.0
pydata-sphinx-theme           0.14.4
Pygments                      2.17.2
python-dateutil               2.8.2
pywin32                       306
pyzmq                         25.1.2
referencing                   0.33.0
requests                      2.31.0
rpds-py                       0.17.1
ruamel.yaml                   0.18.5
ruamel.yaml.clib              0.2.8
setuptools                    63.2.0
six                           1.16.0
snowballstemmer               2.2.0
soupsieve                     2.5
Sphinx                        7.2.6
sphinx-autodoc-typehints      1.25.3
sphinx-code-tabs              0.5.5
sphinx-copybutton             0.5.2
sphinx_design                 0.5.0
sphinx-gallery                0.15.0
sphinx-jinja2-compat          0.2.0.post1
sphinx-prompt                 1.8.0
sphinx-tabs                   3.4.5
sphinx-toolbox                3.5.0
sphinxcontrib-applehelp       1.0.8
sphinxcontrib-devhelp         1.0.6
sphinxcontrib-htmlhelp        2.0.5
sphinxcontrib-jsmath          1.0.1
sphinxcontrib-mermaid         0.7.1
sphinxcontrib-qthelp          1.0.7
sphinxcontrib-serializinghtml 1.1.10
sphinxemoji                   0.2.0
tabulate                      0.9.0
tinycss2                      1.2.1
toml                          0.10.2
tomli                         2.0.1
tornado                       6.4
traitlets                     5.14.1
typing_extensions             4.9.0
urllib3                       2.2.0
vale                          2.30.0.0
webencodings                  0.5.1
zipp                          3.17.0

ansys / ansys-sphinx-theme

The topic directive renders as a blank box. #342