diff --git a/.devcontainer/codespaces-dev/requirements.txt b/.devcontainer/codespaces-dev/requirements.txt
index 528e88e7718..2bf427e5859 100644
--- a/.devcontainer/codespaces-dev/requirements.txt
+++ b/.devcontainer/codespaces-dev/requirements.txt
@@ -1,5 +1,5 @@
 ansys-dpf-core==0.10.1
-ansys-tools-visualization-interface==0.5.0
+ansys-tools-visualization-interface==0.8.3
 autopep8==2.3.1
 matplotlib==3.9.2
 pandas==2.2.3
diff --git a/.devcontainer/codespaces-docs/requirements.txt b/.devcontainer/codespaces-docs/requirements.txt
index 60f49becbc4..fc67712263f 100644
--- a/.devcontainer/codespaces-docs/requirements.txt
+++ b/.devcontainer/codespaces-docs/requirements.txt
@@ -1,7 +1,7 @@
 ansys-dpf-core==0.10.1
 ansys-mapdl-reader==0.54.2
 ansys-sphinx-theme==0.16.6
-ansys-tools-visualization-interface==0.5.0
+ansys-tools-visualization-interface==0.8.3
 grpcio==1.68.0
 imageio-ffmpeg==0.5.1
 imageio==2.36.0
diff --git a/.devcontainer/devcontainer-local/requirements.txt b/.devcontainer/devcontainer-local/requirements.txt
index 6dad52c6449..0c410672c2d 100644
--- a/.devcontainer/devcontainer-local/requirements.txt
+++ b/.devcontainer/devcontainer-local/requirements.txt
@@ -1,7 +1,7 @@
 ansys-dpf-core==0.10.1
 ansys-mapdl-reader==0.54.2
 ansys-sphinx-theme==1.2.2
-ansys-tools-visualization-interface==0.5.0
+ansys-tools-visualization-interface==0.8.3
 autopep8==2.3.1
 grpcio==1.68.0
 imageio-ffmpeg==0.5.1
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 264c0a7411d..2ab9b203b6c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ on:
 
 env:
   PROJECT_NAME: 'PyMAPDL'
-  MAIN_PYTHON_VERSION: '3.11'
+  MAIN_PYTHON_VERSION: '3.12'
   PACKAGE_NAME: 'ansys-mapdl-core'
   PACKAGE_NAMESPACE: 'ansys.mapdl.core'
   DOCUMENTATION_CNAME: 'mapdl.docs.pyansys.com'
diff --git a/doc/changelog.d/3767.dependencies.md b/doc/changelog.d/3767.dependencies.md
new file mode 100644
index 00000000000..4deeb59c827
--- /dev/null
+++ b/doc/changelog.d/3767.dependencies.md
@@ -0,0 +1 @@
+ci: using python3.12 as main testing python version
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index 036c549fa57..b3caec9182d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,6 +73,7 @@ tests = [
     "scipy==1.15.2",
     "vtk==9.3.1",
 ]
+
 doc = [
     "ansys-dpf-core==0.10.1",
     "ansys-mapdl-reader==0.54.2",
diff --git a/src/ansys/mapdl/core/plotting/visualizer.py b/src/ansys/mapdl/core/plotting/visualizer.py
index f4df50e8d89..f8c5b79dd8b 100644
--- a/src/ansys/mapdl/core/plotting/visualizer.py
+++ b/src/ansys/mapdl/core/plotting/visualizer.py
@@ -225,15 +225,12 @@ def get_meshes_from_plotter(self):
         list[pv.PolyData]
             Plotted meshes.
         """
-        datasets = []
-        for actor in self.scene.actors.values():
-            if hasattr(actor, "mapper"):
-                datasets.append(actor.mapper.dataset)
-
         return [
             actor.mapper.dataset
             for actor in self.scene.actors.values()
             if hasattr(actor, "mapper")
+            and hasattr(actor.mapper, "dataset")
+            and actor.mapper.dataset
         ]
 
     def add_labels(