Error while plotting monitors

🔍 Before submitting the issue

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

🐞 Description of the bug

Error while plotting residuals using Fluent visualization's matplotlib capabilities. The error is:

"No artists with labels found to put in legend. Note that artists whose label start with an underscore are ignored when legend() is called with no argument."

📝 Steps to reproduce

1 ) Run this tutorial "Postprocessing using PyVista and Matplotlib"

2) At the line 248 (for plotting residual), it shows this error:

"No artists with labels found to put in legend. Note that artists whose label start with an underscore are ignored when legend() is called with no argument."

💻 Which operating system are you using?

Windows

📀 Which ANSYS version are you using?

ANSYS 23R2

🐍 Which Python version are you using?

3.8

📦 Installed packages

alabaster==0.7.13
ansys-api-fluent==0.3.12
ansys-api-platform-instancemanagement==1.0.0b3
ansys-fluent-core==0.16.0
ansys-fluent-parametric==0.7.1
ansys-fluent-visualization==0.7.1
ansys-platform-instancemanagement==1.1.1
ansys-sphinx-theme==0.8.1
asttokens==2.2.1
attrs==23.1.0
Babel==2.12.1
backcall==0.2.0
beautifulsoup4==4.12.2
bleach==6.0.0
certifi==2023.7.22
charset-normalizer==3.2.0
colorama==0.4.6
comm==0.1.3
contourpy==1.1.0
cycler==0.11.0
debugpy==1.6.7
decorator==5.1.1
defusedxml==0.7.1
docker==6.1.3
docutils==0.19
et-xmlfile==1.1.0
exceptiongroup==1.1.2
executing==1.2.0
fastjsonschema==2.18.0
fonttools==4.41.1
googleapis-common-protos==1.59.1
grpcio==1.56.2
h5py==3.9.0
idna==3.4
imagesize==1.4.1
importlib-metadata==6.8.0
importlib-resources==6.0.0
iniconfig==2.0.0
ipykernel==6.24.0
ipython==8.12.2
ipywidgets==8.0.7
jedi==0.18.2
Jinja2==3.1.2
jsonschema==4.18.4
jsonschema-specifications==2023.7.1
jupyter-client==8.3.0
jupyter-core==5.3.1
jupyter-sphinx==0.4.0
jupyterlab-pygments==0.2.2
jupyterlab-widgets==3.0.8
kiwisolver==1.4.4
livereload==2.6.3
lxml==4.9.3
MarkupSafe==2.1.3
matplotlib==3.6.3
matplotlib-inline==0.1.6
mistune==3.0.1
nbclient==0.8.0
nbconvert==7.7.2
nbformat==5.9.1
nest-asyncio==1.5.6
numpy==1.24.4
numpydoc==1.5.0
openpyxl==3.1.2
packaging==23.1
pandas==1.5.3
pandocfilters==1.5.0
parso==0.8.3
pickleshare==0.7.5
Pillow==10.0.0
pkgutil-resolve-name==1.3.10
platformdirs==3.9.1
plotly==5.15.0
pluggy==1.2.0
pooch==1.7.0
prompt-toolkit==3.0.39
protobuf==3.20.3
protoc-gen-swagger==0.1.0
psutil==5.9.5
pure-eval==0.2.2
pydata-sphinx-theme==0.9.0
Pygments==2.15.1
pypandoc==1.10
pyparsing==3.1.0
PySide6==6.5.1.1
PySide6-Addons==6.5.1.1
PySide6-Essentials==6.5.1.1
pytest==7.4.0
pytest-sphinx==0.5.0
python-dateutil==2.8.2
python-pptx==0.6.21
pytz==2023.3
pyvista==0.41.1
pyvistaqt==0.11.0
pywin32==306
PyYAML==6.0.1
pyzmq==25.1.0
QtPy==2.3.1
referencing==0.30.0
requests==2.31.0
rpds-py==0.9.2
scooby==0.7.2
seaborn==0.12.2
shiboken6==6.5.1.1
six==1.16.0
snowballstemmer==2.2.0
soupsieve==2.4.1
sphinx==5.3.0
sphinx-autobuild==2021.3.14
sphinx-autodoc-typehints==1.21.8
sphinx-copybutton==0.5.1
sphinx-gallery==0.11.1
sphinx-notfound-page==0.8.3
sphinxcontrib-applehelp==1.0.4
sphinxcontrib-devhelp==1.0.2
sphinxcontrib-htmlhelp==2.0.1
sphinxcontrib-jsmath==1.0.1
sphinxcontrib-qthelp==1.0.3
sphinxcontrib-serializinghtml==1.1.5
sphinxcontrib-websupport==1.2.4
sphinxemoji==0.2.0
stack-data==0.6.2
tenacity==8.2.2
tinycss2==1.2.1
tomli==2.0.1
tornado==6.3.2
traitlets==5.9.0
typing-extensions==4.7.1
urllib3==2.0.4
vtk==9.2.6
wcwidth==0.2.6
webencodings==0.5.1
websocket-client==1.6.1
widgetsnbextension==4.0.8
XlsxWriter==3.1.2
zipp==3.16.2

ansys / pyfluent-visualization

Error while plotting monitors #313