diff --git a/openpype/hosts/blender/plugins/publish/validate_camera_zero_keyframe.py b/openpype/hosts/blender/plugins/publish/validate_camera_zero_keyframe.py
index ea45318219..5ba4808875 100644
--- a/openpype/hosts/blender/plugins/publish/validate_camera_zero_keyframe.py
+++ b/openpype/hosts/blender/plugins/publish/validate_camera_zero_keyframe.py
@@ -1,11 +1,10 @@
 from typing import List
 
-import mathutils
 import bpy
 
 import pyblish.api
-from openpype.api import ValidateContentsOrder
-from openpype.hosts.blender.api.action import SelectInvalidAction
+import openpype.api
+import openpype.hosts.blender.api.action
 
 
 class ValidateCameraZeroKeyframe(pyblish.api.InstancePlugin):
@@ -16,18 +15,17 @@ class ValidateCameraZeroKeyframe(pyblish.api.InstancePlugin):
     in Unreal and Blender.
     """
 
-    order = ValidateContentsOrder
+    order = openpype.api.ValidateContentsOrder
     hosts = ["blender"]
     families = ["camera"]
-    category = "geometry"
     version = (0, 1, 0)
     label = "Zero Keyframe"
-    actions = [SelectInvalidAction]
+    actions = [openpype.hosts.blender.api.action.SelectInvalidAction]
 
     @staticmethod
     def get_invalid(instance) -> List:
         invalid = []
-        for obj in set(instance):
+        for obj in instance:
             if isinstance(obj, bpy.types.Object) and obj.type == "CAMERA":
                 if obj.animation_data and obj.animation_data.action:
                     action = obj.animation_data.action
diff --git a/openpype/hosts/blender/plugins/publish/validate_mesh_has_uv.py b/openpype/hosts/blender/plugins/publish/validate_mesh_has_uv.py
index d87b4ff1ef..1a52b3f851 100644
--- a/openpype/hosts/blender/plugins/publish/validate_mesh_has_uv.py
+++ b/openpype/hosts/blender/plugins/publish/validate_mesh_has_uv.py
@@ -3,19 +3,19 @@ from typing import List
 import bpy
 
 import pyblish.api
-from openpype.api import ValidateContentsOrder
-from openpype.hosts.blender.api.action import SelectInvalidAction
+import openpype.api
+import openpype.hosts.blender.api.action
 
 
 class ValidateMeshHasUvs(pyblish.api.InstancePlugin):
     """Validate that the current mesh has UV's."""
 
-    order = ValidateContentsOrder
+    order = openpype.api.ValidateContentsOrder
     hosts = ["blender"]
     families = ["model"]
-    category = "uv"
+    category = "geometry"
     label = "Mesh Has UV's"
-    actions = [SelectInvalidAction]
+    actions = [openpype.hosts.blender.api.action.SelectInvalidAction]
     optional = True
 
     @staticmethod
@@ -34,16 +34,10 @@ class ValidateMeshHasUvs(pyblish.api.InstancePlugin):
     @classmethod
     def get_invalid(cls, instance) -> List:
         invalid = []
-        for obj in set(instance):
-            try:
-                if isinstance(obj, bpy.types.Object) and obj.type == 'MESH':
-                    if obj.mode != 'OBJECT':
-                        # Make sure we are in object mode.
-                        bpy.ops.object.mode_set(mode='OBJECT')
-                    if not cls.has_uvs(obj):
-                        invalid.append(obj)
-            except RuntimeError:
-                continue
+        for obj in instance:
+            if isinstance(obj, bpy.types.Object) and obj.type == 'MESH':
+                if not cls.has_uvs(obj):
+                    invalid.append(obj)
         return invalid
 
     def process(self, instance):
diff --git a/openpype/hosts/blender/plugins/publish/validate_mesh_no_negative_scale.py b/openpype/hosts/blender/plugins/publish/validate_mesh_no_negative_scale.py
index 449e711663..3c5c7c11eb 100644
--- a/openpype/hosts/blender/plugins/publish/validate_mesh_no_negative_scale.py
+++ b/openpype/hosts/blender/plugins/publish/validate_mesh_no_negative_scale.py
@@ -3,24 +3,24 @@ from typing import List
 import bpy
 
 import pyblish.api
-from openpype.api import ValidateContentsOrder
-from openpype.hosts.blender.api.action import SelectInvalidAction
+import openpype.api
+import openpype.hosts.blender.api.action
 
 
 class ValidateMeshNoNegativeScale(pyblish.api.Validator):
     """Ensure that meshes don't have a negative scale."""
 
-    order = ValidateContentsOrder
+    order = openpype.api.ValidateContentsOrder
     hosts = ["blender"]
     families = ["model"]
     category = "geometry"
     label = "Mesh No Negative Scale"
-    actions = [SelectInvalidAction]
+    actions = [openpype.hosts.blender.api.action.SelectInvalidAction]
 
     @staticmethod
     def get_invalid(instance) -> List:
         invalid = []
-        for obj in set(instance):
+        for obj in instance:
             if isinstance(obj, bpy.types.Object) and obj.type == 'MESH':
                 if any(v < 0 for v in obj.scale):
                     invalid.append(obj)
diff --git a/openpype/hosts/blender/plugins/publish/validate_no_colons_in_name.py b/openpype/hosts/blender/plugins/publish/validate_no_colons_in_name.py
index f1889e5837..daf35c61ac 100644
--- a/openpype/hosts/blender/plugins/publish/validate_no_colons_in_name.py
+++ b/openpype/hosts/blender/plugins/publish/validate_no_colons_in_name.py
@@ -3,8 +3,8 @@ from typing import List
 import bpy
 
 import pyblish.api
-from openpype.api import ValidateContentsOrder
-from openpype.hosts.blender.api.action import SelectInvalidAction
+import openpype.api
+import openpype.hosts.blender.api.action
 
 
 class ValidateNoColonsInName(pyblish.api.InstancePlugin):
@@ -15,18 +15,17 @@ class ValidateNoColonsInName(pyblish.api.InstancePlugin):
 
     """
 
-    order = ValidateContentsOrder
+    order = openpype.api.ValidateContentsOrder
     hosts = ["blender"]
     families = ["model", "rig"]
-    category = "cleanup"
     version = (0, 1, 0)
     label = "No Colons in names"
-    actions = [SelectInvalidAction]
+    actions = [openpype.hosts.blender.api.action.SelectInvalidAction]
 
     @staticmethod
-    def get_invalid(cls, instance) -> List:
+    def get_invalid(instance) -> List:
         invalid = []
-        for obj in set(instance):
+        for obj in instance:
             if ':' in obj.name:
                 invalid.append(obj)
             if isinstance(obj, bpy.types.Object) and obj.type == 'ARMATURE':
@@ -40,4 +39,5 @@ class ValidateNoColonsInName(pyblish.api.InstancePlugin):
         invalid = self.get_invalid(instance)
         if invalid:
             raise RuntimeError(
-                f"Objects found with colon in name: {invalid}")
+                f"Objects found with colon in name: {invalid}"
+            )
diff --git a/openpype/hosts/blender/plugins/publish/validate_object_mode.py b/openpype/hosts/blender/plugins/publish/validate_object_mode.py
index 65b0bf7655..ac60e00f89 100644
--- a/openpype/hosts/blender/plugins/publish/validate_object_mode.py
+++ b/openpype/hosts/blender/plugins/publish/validate_object_mode.py
@@ -3,7 +3,7 @@ from typing import List
 import bpy
 
 import pyblish.api
-from openpype.hosts.blender.api.action import SelectInvalidAction
+import openpype.hosts.blender.api.action
 
 
 class ValidateObjectIsInObjectMode(pyblish.api.InstancePlugin):
@@ -12,22 +12,21 @@ class ValidateObjectIsInObjectMode(pyblish.api.InstancePlugin):
     order = pyblish.api.ValidatorOrder - 0.01
     hosts = ["blender"]
     families = ["model", "rig", "layout"]
-    category = "cleanup"
     label = "Validate Object Mode"
-    actions = [SelectInvalidAction]
+    actions = [openpype.hosts.blender.api.action.SelectInvalidAction]
     optional = False
 
     @staticmethod
-    def get_invalid(cls, instance) -> List:
+    def get_invalid(instance) -> List:
         invalid = []
-        for obj in set(instance):
-            if isinstance(obj, bpy.types.Object):
-                if not obj.mode == 'OBJECT':
-                    invalid.append(obj)
+        for obj in instance:
+            if isinstance(obj, bpy.types.Object) and obj.mode != "OBJECT":
+                invalid.append(obj)
         return invalid
 
     def process(self, instance):
         invalid = self.get_invalid(instance)
         if invalid:
             raise RuntimeError(
-                f"Object found in instance is not in Object Mode: {invalid}")
+                f"Object found in instance is not in Object Mode: {invalid}"
+            )
diff --git a/openpype/hosts/blender/plugins/publish/validate_transform_zero.py b/openpype/hosts/blender/plugins/publish/validate_transform_zero.py
index 7443e3c64e..6e03094794 100644
--- a/openpype/hosts/blender/plugins/publish/validate_transform_zero.py
+++ b/openpype/hosts/blender/plugins/publish/validate_transform_zero.py
@@ -4,8 +4,8 @@ import mathutils
 import bpy
 
 import pyblish.api
-from openpype.api import ValidateContentsOrder
-from openpype.hosts.blender.api.action import SelectInvalidAction
+import openpype.api
+import openpype.hosts.blender.api.action
 
 
 class ValidateTransformZero(pyblish.api.InstancePlugin):
@@ -17,20 +17,19 @@ class ValidateTransformZero(pyblish.api.InstancePlugin):
 
     """
 
-    order = ValidateContentsOrder
+    order = openpype.api.ValidateContentsOrder
     hosts = ["blender"]
     families = ["model"]
-    category = "cleanup"
     version = (0, 1, 0)
     label = "Transform Zero"
-    actions = [SelectInvalidAction]
+    actions = [openpype.hosts.blender.api.action.SelectInvalidAction]
 
     _identity = mathutils.Matrix()
 
     @classmethod
     def get_invalid(cls, instance) -> List:
         invalid = []
-        for obj in set(instance):
+        for obj in instance:
             if (
                 isinstance(obj, bpy.types.Object)
                 and obj.matrix_basis != cls._identity