Error with element solution using preintegrated shell section (GENS)

### 🔍 Before submitting the issue

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

### 🐞 Description of the bug

The function "**element_stress()**" returns stress values for some(?) shell181 elements that are defined using the preintegrated shell section (Sectype, GENS).

The model consists of three Shell181 elements. Elements 1 and 3 are defined using GENS while Element 2 is an isotropic single layer element. Because Shell181 elements (defined using GENS) do not feature stress results as output data, there should be no stress values available for elements 1 and 3.

Attached input files are as following:

- fe_temp.txt --> should be renamed to fe_temp.ans (containing the model, i.e. nodes, elements, materials, etc.)
- fe_temp_loads.txt --> should be renamed to fe_temp.s01 (containing loads, boundary conditions)

[fe_temp.txt](https://github.com/user-attachments/files/21166216/fe_temp.txt)

[fe_temp_loads.txt](https://github.com/user-attachments/files/21166247/fe_temp_loads.txt)

### 📝 Steps to reproduce

# Input
import ansys.mapdl.reader as pmr

result_obj = pmr.read_binary('fe_temp.rst')
eids, stress, nodes = result_obj.element_stress(0,in_element_coord_sys=True)

# Output:
[array([[nan, nan, nan, nan, nan, nan],
[nan, nan, nan, nan, nan, nan],
[nan, nan, nan, nan, nan, nan],
[nan, nan, nan, nan, nan, nan]]),

array([[ 3.99981406e+05, 1.08368633e+04, 0.00000000e+00,
6.03957832e-01, 0.00000000e+00, 0.00000000e+00],
[ 3.99981406e+05, 1.25480312e+04, 0.00000000e+00,
6.03957832e-01, 0.00000000e+00, 0.00000000e+00],
[-1.99981422e+05, 1.25480312e+04, 0.00000000e+00,
6.03957832e-01, 0.00000000e+00, 0.00000000e+00],
[-1.99981422e+05, 1.08368633e+04, 0.00000000e+00,
6.03957832e-01, 0.00000000e+00, 0.00000000e+00]]),

**array([[ 3.99981406e+05, 1.08368633e+04, 0.00000000e+00,
6.03957832e-01, 0.00000000e+00, 0.00000000e+00],
[ 3.99981406e+05, 1.25480312e+04, 0.00000000e+00,
6.03957832e-01, 0.00000000e+00, 0.00000000e+00],
[-1.99981422e+05, 1.25480312e+04, 0.00000000e+00,
6.03957832e-01, 0.00000000e+00, 0.00000000e+00],
[-1.99981422e+05, 1.08368633e+04, 0.00000000e+00,
6.03957832e-01, 0.00000000e+00, 0.00000000e+00]])]**

#Expected Output
I would have expected an array full of nan's for the last element (depicted in bold) - exactly the same as for the first element. However, the aforementioned function returns values.

### 💻 Which operating system are you using?

Windows

### 📀 Which ANSYS version are you using?

- ANSYS 2021 R2
- Python 3.10.14
- ansys-mapdl-reader 0.55.1
- Windows 11

### 🐍 Which Python version are you using?

3.10

### 📦 Installed packages

```shell
aiohttp @ file:///D:/bld/aiohttp_1713965023187/work
aiosignal @ file:///home/conda/feedstock_root/build_artifacts/aiosignal_1667935791922/work
alabaster @ file:///home/conda/feedstock_root/build_artifacts/alabaster_1722035799745/work
ansys-mapdl-reader==0.55.1
appdirs==1.4.4
arrow @ file:///home/conda/feedstock_root/build_artifacts/arrow_1696128962909/work
astroid @ file:///D:/bld/astroid_1721516298941/work
asttokens @ file:///home/conda/feedstock_root/build_artifacts/asttokens_1698341106958/work
async-timeout @ file:///home/conda/feedstock_root/build_artifacts/async-timeout_1691763562544/work
atomicwrites @ file:///home/conda/feedstock_root/build_artifacts/atomicwrites_1657325823582/work
attrs @ file:///home/conda/feedstock_root/build_artifacts/attrs_1704011227531/work
autopep8 @ file:///home/conda/feedstock_root/build_artifacts/autopep8_1693061251004/work
Babel @ file:///home/conda/feedstock_root/build_artifacts/babel_1702422572539/work
backports.tarfile @ file:///home/conda/feedstock_root/build_artifacts/backports.tarfile_1712700614056/work
bcrypt @ file:///D:/bld/bcrypt_1721690124043/work
beautifulsoup4 @ file:///home/conda/feedstock_root/build_artifacts/beautifulsoup4_1705564648255/work
binaryornot==0.4.4
black @ file:///D:/bld/black-recipe_1714119736884/work
bleach @ file:///home/conda/feedstock_root/build_artifacts/bleach_1696630167146/work
Brotli @ file:///D:/bld/brotli-split_1695989908365/work
certifi @ file:///home/conda/feedstock_root/build_artifacts/certifi_1720457958366/work/certifi
cffi @ file:///D:/bld/cffi_1696001730392/work
chardet @ file:///D:/bld/chardet_1695468775730/work
charset-normalizer @ file:///home/conda/feedstock_root/build_artifacts/charset-normalizer_1698833585322/work
click @ file:///D:/bld/click_1692312014553/work
cloudpickle @ file:///home/conda/feedstock_root/build_artifacts/cloudpickle_1697464713350/work
colorama @ file:///home/conda/feedstock_root/build_artifacts/colorama_1666700638685/work
comm @ file:///home/conda/feedstock_root/build_artifacts/comm_1710320294760/work
contourpy @ file:///D:/bld/contourpy_1712429995466/work
cookiecutter @ file:///home/conda/feedstock_root/build_artifacts/cookiecutter_1708608886262/work
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cycler @ file:///home/conda/feedstock_root/build_artifacts/cycler_1696677705766/work
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decorator @ file:///home/conda/feedstock_root/build_artifacts/decorator_1641555617451/work
defusedxml @ file:///home/conda/feedstock_root/build_artifacts/defusedxml_1615232257335/work
diff-match-patch @ file:///home/conda/feedstock_root/build_artifacts/diff-match-patch_1683670697993/work
dill @ file:///home/conda/feedstock_root/build_artifacts/dill_1706434688412/work
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docutils @ file:///home/conda/feedstock_root/build_artifacts/docutils_1713930378730/work
entrypoints @ file:///home/conda/feedstock_root/build_artifacts/entrypoints_1643888246732/work
exceptiongroup @ file:///home/conda/feedstock_root/build_artifacts/exceptiongroup_1720869315914/work
executing @ file:///home/conda/feedstock_root/build_artifacts/executing_1698579936712/work
fastjsonschema @ file:///home/conda/feedstock_root/build_artifacts/python-fastjsonschema_1718477020893/work/dist
flake8 @ file:///home/conda/feedstock_root/build_artifacts/flake8_1704483779980/work
fonttools @ file:///D:/bld/fonttools_1720359163792/work
frozenlist @ file:///D:/bld/frozenlist_1702645632209/work
gmsh==4.13.1
h2 @ file:///home/conda/feedstock_root/build_artifacts/h2_1634280454336/work
hpack==4.0.0
hyperframe @ file:///home/conda/feedstock_root/build_artifacts/hyperframe_1619110129307/work
idna @ file:///home/conda/feedstock_root/build_artifacts/idna_1713279365350/work
imageio @ file:///home/conda/feedstock_root/build_artifacts/imageio_1719234999090/work
imagesize @ file:///home/conda/feedstock_root/build_artifacts/imagesize_1656939531508/work
importlib_metadata @ file:///home/conda/feedstock_root/build_artifacts/importlib-metadata_1721856510709/work
importlib_resources @ file:///home/conda/feedstock_root/build_artifacts/importlib_resources_1711040877059/work
inflection @ file:///home/conda/feedstock_root/build_artifacts/inflection_1598089801258/work
iniconfig @ file:///home/conda/feedstock_root/build_artifacts/iniconfig_1673103042956/work
intervaltree @ file:///home/conda/feedstock_root/build_artifacts/intervaltree_1683532206518/work
ipykernel @ file:///D:/bld/ipykernel_1719845595208/work
ipython @ file:///D:/bld/ipython_1719582682925/work
isort @ file:///home/conda/feedstock_root/build_artifacts/isort_1702518492027/work
jaraco.classes @ file:///home/conda/feedstock_root/build_artifacts/jaraco.classes_1713939306738/work
jaraco.context @ file:///home/conda/feedstock_root/build_artifacts/jaraco.context_1714372187587/work
jaraco.functools @ file:///home/conda/feedstock_root/build_artifacts/jaraco.functools_1701695162614/work
jedi @ file:///home/conda/feedstock_root/build_artifacts/jedi_1696326070614/work
jellyfish @ file:///D:/bld/jellyfish_1722370639857/work
Jinja2 @ file:///home/conda/feedstock_root/build_artifacts/jinja2_1715127149914/work
jsonschema @ file:///home/conda/feedstock_root/build_artifacts/jsonschema_1720529478715/work
jsonschema-specifications @ file:///tmp/tmpkv1z7p57/src
jupyter_client @ file:///home/conda/feedstock_root/build_artifacts/jupyter_client_1716472197302/work
jupyter_core @ file:///D:/bld/jupyter_core_1710257272359/work
jupyterlab_pygments @ file:///home/conda/feedstock_root/build_artifacts/jupyterlab_pygments_1707149102966/work
keyring @ file:///D:/bld/keyring_1715715360437/work
kiwisolver @ file:///D:/bld/kiwisolver_1695380033173/work
loguru @ file:///D:/bld/loguru_1695547527493/work
lxml==5.2.2
markdown-it-py @ file:///home/conda/feedstock_root/build_artifacts/markdown-it-py_1686175045316/work
MarkupSafe @ file:///D:/bld/markupsafe_1706900062361/work
matplotlib==3.9.1
matplotlib-inline @ file:///home/conda/feedstock_root/build_artifacts/matplotlib-inline_1713250518406/work
mccabe @ file:///home/conda/feedstock_root/build_artifacts/mccabe_1643049622439/work
mdurl @ file:///home/conda/feedstock_root/build_artifacts/mdurl_1704317613764/work
mistune @ file:///home/conda/feedstock_root/build_artifacts/mistune_1698947099619/work
more-itertools @ file:///home/conda/feedstock_root/build_artifacts/more-itertools_1718048476694/work
msgpack @ file:///D:/bld/msgpack-python_1715670735611/work
multidict @ file:///D:/bld/multidict_1707040863556/work
munkres==1.1.4
mypy-extensions @ file:///home/conda/feedstock_root/build_artifacts/mypy_extensions_1675543315189/work
nbclient @ file:///home/conda/feedstock_root/build_artifacts/nbclient_1710317608672/work
nbconvert @ file:///home/conda/feedstock_root/build_artifacts/nbconvert-meta_1718135430380/work
nbformat @ file:///home/conda/feedstock_root/build_artifacts/nbformat_1712238998817/work
nest_asyncio @ file:///home/conda/feedstock_root/build_artifacts/nest-asyncio_1705850609492/work
networkx @ file:///home/conda/feedstock_root/build_artifacts/networkx_1712540363324/work
numexpr @ file:///D:/bld/numexpr_1637086614442/work
numpy @ file:///D:/bld/numpy_1707225570061/work/dist/numpy-1.26.4-cp310-cp310-win_amd64.whl#sha256=6761da75b1528684e6bf4dabdbdded9d1eb4d0e9b299482c7ce152cfb3155106
numpydoc @ file:///home/conda/feedstock_root/build_artifacts/numpydoc_1721767862897/work
packaging @ file:///home/conda/feedstock_root/build_artifacts/packaging_1718189413536/work
pandas @ file:///D:/bld/pandas_1715897730709/work
pandocfilters @ file:///home/conda/feedstock_root/build_artifacts/pandocfilters_1631603243851/work
paramiko @ file:///home/conda/feedstock_root/build_artifacts/paramiko_1703015906107/work
parso @ file:///home/conda/feedstock_root/build_artifacts/parso_1712320355065/work
pathspec @ file:///home/conda/feedstock_root/build_artifacts/pathspec_1702249949303/work
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platformdirs @ file:///home/conda/feedstock_root/build_artifacts/platformdirs_1715777629804/work
pluggy @ file:///home/conda/feedstock_root/build_artifacts/pluggy_1713667077545/work
ply @ file:///home/conda/feedstock_root/build_artifacts/ply_1712242996588/work
pooch==1.8.2
prompt_toolkit @ file:///home/conda/feedstock_root/build_artifacts/prompt-toolkit_1718047967974/work
psutil @ file:///D:/bld/psutil_1719274706785/work
ptyprocess @ file:///home/conda/feedstock_root/build_artifacts/ptyprocess_1609419310487/work/dist/ptyprocess-0.7.0-py2.py3-none-any.whl
pure_eval @ file:///home/conda/feedstock_root/build_artifacts/pure_eval_1721585709575/work
py-cpuinfo @ file:///home/conda/feedstock_root/build_artifacts/py-cpuinfo_1666774466606/work
pycodestyle @ file:///home/conda/feedstock_root/build_artifacts/pycodestyle_1697202867721/work
pycparser @ file:///home/conda/feedstock_root/build_artifacts/pycparser_1711811537435/work
pydocstyle @ file:///home/conda/feedstock_root/build_artifacts/pydocstyle_1673997487070/work
pyflakes @ file:///home/conda/feedstock_root/build_artifacts/pyflakes_1704424584912/work
Pygments @ file:///home/conda/feedstock_root/build_artifacts/pygments_1714846767233/work
pylint @ file:///home/conda/feedstock_root/build_artifacts/pylint_1721653950583/work
pylint-venv @ file:///home/conda/feedstock_root/build_artifacts/pylint-venv_1698219336631/work
pyls-spyder @ file:///home/conda/feedstock_root/build_artifacts/pyls-spyder_1619747398504/work
PyNaCl @ file:///D:/bld/pynacl_1695545061432/work
pyparsing @ file:///home/conda/feedstock_root/build_artifacts/pyparsing_1709721012883/work
PyQt5==5.15.9
PyQt5-sip @ file:///D:/bld/pyqt-split_1695418047530/work/pyqt_sip
PyQtWebEngine==5.15.4
PySocks @ file:///D:/bld/pysocks_1661604991356/work
pytest @ file:///home/conda/feedstock_root/build_artifacts/pytest_1721923606331/work
python-dateutil @ file:///home/conda/feedstock_root/build_artifacts/python-dateutil_1709299778482/work
python-lsp-black @ file:///home/conda/feedstock_root/build_artifacts/python-lsp-black_1702956932456/work
python-lsp-jsonrpc @ file:///home/conda/feedstock_root/build_artifacts/python-lsp-jsonrpc_1695528365348/work
python-lsp-server @ file:///home/conda/feedstock_root/build_artifacts/python-lsp-server-meta_1711734797703/work
python-slugify @ file:///home/conda/feedstock_root/build_artifacts/python-slugify-split_1707425621764/work
pytoolconfig @ file:///home/conda/feedstock_root/build_artifacts/pytoolconfig_1675124745143/work
pytz @ file:///home/conda/feedstock_root/build_artifacts/pytz_1706886791323/work
pyvista==0.45.2
pywin32==306
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PyYAML @ file:///D:/bld/pyyaml_1695373629531/work
pyzmq @ file:///D:/bld/pyzmq_1715024531233/work
QDarkStyle @ file:///home/conda/feedstock_root/build_artifacts/qdarkstyle_1702957860620/work
qstylizer @ file:///home/conda/feedstock_root/build_artifacts/qstylizer_1713394158018/work/dist/qstylizer-0.2.3-py2.py3-none-any.whl#sha256=9f7b5d720ea5b7459972f570e09067f8286e9d00955e2b91ef2bd4d0b5edce1c
QtAwesome @ file:///home/conda/feedstock_root/build_artifacts/qtawesome_1711652164228/work
qtconsole @ file:///home/conda/feedstock_root/build_artifacts/qtconsole-base_1714942934316/work
QtPy @ file:///home/conda/feedstock_root/build_artifacts/qtpy_1698112029416/work
referencing @ file:///home/conda/feedstock_root/build_artifacts/referencing_1714619483868/work
requests @ file:///home/conda/feedstock_root/build_artifacts/requests_1717057054362/work
rich @ file:///home/conda/feedstock_root/build_artifacts/rich-split_1709150387247/work/dist
rope @ file:///home/conda/feedstock_root/build_artifacts/rope_1711296293824/work
rpds-py @ file:///D:/bld/rpds-py_1721861050549/work
Rtree @ file:///D:/bld/rtree_1720728663707/work
scipy @ file:///C:/bld/scipy-split_1720323113518/work/dist/scipy-1.14.0-cp310-cp310-win_amd64.whl#sha256=aff617c4dbd3181c34b13a5d7328da74e1cd748c7edfec383281d1dbee8b7859
scooby==0.10.1
sip @ file:///D:/bld/sip_1697300537181/work
six @ file:///home/conda/feedstock_root/build_artifacts/six_1620240208055/work
snowballstemmer @ file:///home/conda/feedstock_root/build_artifacts/snowballstemmer_1637143057757/work
sortedcontainers @ file:///home/conda/feedstock_root/build_artifacts/sortedcontainers_1621217038088/work
soupsieve @ file:///home/conda/feedstock_root/build_artifacts/soupsieve_1693929250441/work
Sphinx @ file:///home/conda/feedstock_root/build_artifacts/sphinx_1722330119542/work
sphinxcontrib-applehelp @ file:///home/conda/feedstock_root/build_artifacts/sphinxcontrib-applehelp_1722244468291/work
sphinxcontrib-devhelp @ file:///home/conda/feedstock_root/build_artifacts/sphinxcontrib-devhelp_1722245025182/work
sphinxcontrib-htmlhelp @ file:///home/conda/feedstock_root/build_artifacts/sphinxcontrib-htmlhelp_1722248302725/work
sphinxcontrib-jsmath @ file:///home/conda/feedstock_root/build_artifacts/sphinxcontrib-jsmath_1691604704163/work
sphinxcontrib-qthelp @ file:///home/conda/feedstock_root/build_artifacts/sphinxcontrib-qthelp_1722245860247/work
sphinxcontrib-serializinghtml @ file:///home/conda/feedstock_root/build_artifacts/sphinxcontrib-serializinghtml_1705118225549/work
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stack-data @ file:///home/conda/feedstock_root/build_artifacts/stack_data_1669632077133/work
svgwrite @ file:///home/conda/feedstock_root/build_artifacts/svgwrite_1657874093829/work
tables==3.9.2
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text-unidecode @ file:///home/conda/feedstock_root/build_artifacts/text-unidecode_1694707102786/work
textdistance @ file:///home/conda/feedstock_root/build_artifacts/textdistance_1721228410193/work
three-merge @ file:///home/conda/feedstock_root/build_artifacts/three-merge_1595515817927/work
tinycss2 @ file:///home/conda/feedstock_root/build_artifacts/tinycss2_1713974937325/work
toml @ file:///home/conda/feedstock_root/build_artifacts/toml_1604308577558/work
tomli @ file:///home/conda/feedstock_root/build_artifacts/tomli_1644342247877/work
tomlkit @ file:///home/conda/feedstock_root/build_artifacts/tomlkit_1720625865963/work
tornado @ file:///D:/bld/tornado_1717722834267/work
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traitlets @ file:///home/conda/feedstock_root/build_artifacts/traitlets_1713535121073/work
trimesh @ file:///home/conda/feedstock_root/build_artifacts/trimesh_1720735671102/work
types-python-dateutil @ file:///home/conda/feedstock_root/build_artifacts/types-python-dateutil_1710589910274/work
typing_extensions @ file:///home/conda/feedstock_root/build_artifacts/typing_extensions_1717802530399/work
tzdata @ file:///home/conda/feedstock_root/build_artifacts/python-tzdata_1707747584337/work
ujson @ file:///D:/bld/ujson_1715783261496/work
unicodedata2 @ file:///D:/bld/unicodedata2_1695848155043/work
urllib3 @ file:///home/conda/feedstock_root/build_artifacts/urllib3_1719391292974/work
vtk==9.3.1
watchdog @ file:///D:/bld/watchdog_1716561910983/work
wcwidth @ file:///home/conda/feedstock_root/build_artifacts/wcwidth_1704731205417/work
webencodings @ file:///home/conda/feedstock_root/build_artifacts/webencodings_1694681268211/work
whatthepatch @ file:///home/conda/feedstock_root/build_artifacts/whatthepatch_1720999218266/work
win-inet-pton @ file:///D:/bld/win_inet_pton_1667051142467/work
win32-setctime @ file:///home/conda/feedstock_root/build_artifacts/win32_setctime_1642883564726/work
wslink @ file:///home/conda/feedstock_root/build_artifacts/wslink_1718909657344/work
yapf @ file:///home/conda/feedstock_root/build_artifacts/yapf_1690387939953/work
yarl @ file:///D:/bld/yarl_1705508428234/work
zipp @ file:///home/conda/feedstock_root/build_artifacts/zipp_1718013267051/work
zstandard==0.23.0
```

Start at the element_stress() entry point and reproduce the result with fe_temp.ans, fe_temp.s01, and fe_temp.rst using the reported Python snippet. Compare the stress arrays for the three Shell181 elements; done means the GENS-defined elements return only NaN stress values, matching the expected output, with a regression test for this case.

Written by the indexing model from the issue text.