diff --git a/cura/Settings/MachineManager.py b/cura/Settings/MachineManager.py
index ca7baf2f63..2df8c0d967 100755
--- a/cura/Settings/MachineManager.py
+++ b/cura/Settings/MachineManager.py
@@ -988,11 +988,21 @@ class MachineManager(QObject):
 
     def activeMaterialsCompatible(self):
         # check material - variant compatibility
+        result = True
+        machine_has_buildplate = Util.parseBool(self._global_container_stack.getMetaDataEntry("has_variant_buildplates", False))
         if Util.parseBool(self._global_container_stack.getMetaDataEntry("has_materials", False)):
             for position, extruder in self._global_container_stack.extruders.items():
                 if extruder.isEnabled and not extruder.material.getMetaDataEntry("compatible"):
-                    return False
-        return True
+                    result = False
+                    break
+                if machine_has_buildplate:
+                    buildplate_compatibility_dict = extruder.material.getMetaDataEntry("buildplate_compatible")
+                    if buildplate_compatibility_dict:
+                        buildplate_name = self._global_container_stack.variant.getName()
+                        result = buildplate_compatibility_dict.get(buildplate_name, True)
+                        if not result:
+                            break
+        return result
 
     ## Update current quality type and machine after setting material
     def _updateQualityWithMaterial(self):
diff --git a/plugins/MachineSettingsAction/MachineSettingsAction.qml b/plugins/MachineSettingsAction/MachineSettingsAction.qml
index 4d00904f76..f941ef87b4 100644
--- a/plugins/MachineSettingsAction/MachineSettingsAction.qml
+++ b/plugins/MachineSettingsAction/MachineSettingsAction.qml
@@ -244,6 +244,7 @@ Cura.MachineAction
                                 height: childrenRect.height
                                 width: childrenRect.width
                                 text: machineExtruderCountProvider.properties.description
+                                visible: extruderCountModel.count >= 2
 
                                 Row
                                 {
diff --git a/plugins/PostProcessingPlugin/PostProcessingPlugin.py b/plugins/PostProcessingPlugin/PostProcessingPlugin.py
index 566b05abf3..c4b760724b 100644
--- a/plugins/PostProcessingPlugin/PostProcessingPlugin.py
+++ b/plugins/PostProcessingPlugin/PostProcessingPlugin.py
@@ -173,7 +173,10 @@ class PostProcessingPlugin(QObject, Extension):
         Logger.log("d", "Creating post processing plugin view.")
 
         ## Load all scripts in the scripts folders
-        for root in [PluginRegistry.getInstance().getPluginPath("PostProcessingPlugin"), Resources.getStoragePath(Resources.Preferences)]:
+        #  The PostProcessingPlugin path is for built-in scripts.
+        #  The Resources path is where the user should store custom scripts.
+        #  The Preferences path is legacy, where the user may previously have stored scripts.
+        for root in [PluginRegistry.getInstance().getPluginPath("PostProcessingPlugin"), Resources.getStoragePath(Resources.Resources), Resources.getStoragePath(Resources.Preferences)]:
             path = os.path.join(root, "scripts")
             if not os.path.isdir(path):
                 try:
diff --git a/plugins/VersionUpgrade/VersionUpgrade32to33/__init__.py b/plugins/VersionUpgrade/VersionUpgrade32to33/__init__.py
index acccfd88dd..c411b4190e 100644
--- a/plugins/VersionUpgrade/VersionUpgrade32to33/__init__.py
+++ b/plugins/VersionUpgrade/VersionUpgrade32to33/__init__.py
@@ -8,10 +8,10 @@ upgrade = VersionUpgrade32to33.VersionUpgrade32to33()
 def getMetaData():
     return {
         "version_upgrade": {
-            # From                        To                   Upgrade function
+            # From                           To                              Upgrade function
             ("definition_changes", 2000004): ("definition_changes", 3000004, upgrade.upgradeInstanceContainer),
-            ("quality_changes", 2000004):    ("quality_changes", 3000004, upgrade.upgradeQualityChanges),
-            ("user", 2000004):               ("user", 3000004, upgrade.upgradeInstanceContainer)
+            ("quality_changes", 2000004):    ("quality_changes", 3000004,    upgrade.upgradeQualityChanges),
+            ("user", 2000004):               ("user", 3000004,               upgrade.upgradeInstanceContainer)
         },
         "sources": {
             "definition_changes": {
diff --git a/plugins/XmlMaterialProfile/XmlMaterialProfile.py b/plugins/XmlMaterialProfile/XmlMaterialProfile.py
index a7ba423153..e8d0c9d2f0 100644
--- a/plugins/XmlMaterialProfile/XmlMaterialProfile.py
+++ b/plugins/XmlMaterialProfile/XmlMaterialProfile.py
@@ -617,7 +617,8 @@ class XmlMaterialProfile(InstanceContainer):
 
                         from cura.Machines.VariantManager import VariantType
                         variant_manager = CuraApplication.getInstance().getVariantManager()
-                        variant_node = variant_manager.getVariantNode(machine_id, buildplate_id)
+                        variant_node = variant_manager.getVariantNode(machine_id, buildplate_id,
+                                                                      variant_type = VariantType.BUILD_PLATE)
                         if not variant_node:
                             continue