diff --git a/openpype/tools/loader/model.py b/openpype/tools/loader/model.py
index 14671e341f..e5d8400031 100644
--- a/openpype/tools/loader/model.py
+++ b/openpype/tools/loader/model.py
@@ -123,7 +123,7 @@ class BaseRepresentationModel(object):
         self.remote_provider = remote_provider
 
 
-class SubsetsModel(TreeModel, BaseRepresentationModel):
+class SubsetsModel(BaseRepresentationModel, TreeModel):
     doc_fetched = QtCore.Signal()
     refreshed = QtCore.Signal(bool)
 
diff --git a/openpype/tools/publisher/widgets/list_view_widgets.py b/openpype/tools/publisher/widgets/list_view_widgets.py
index 227ae7bda9..cb5a203130 100644
--- a/openpype/tools/publisher/widgets/list_view_widgets.py
+++ b/openpype/tools/publisher/widgets/list_view_widgets.py
@@ -1039,7 +1039,8 @@ class InstanceListView(AbstractInstanceView):
             proxy_index = proxy_model.mapFromSource(select_indexes[0])
             selection_model.setCurrentIndex(
                 proxy_index,
-                selection_model.ClearAndSelect | selection_model.Rows
+                QtCore.QItemSelectionModel.ClearAndSelect
+                | QtCore.QItemSelectionModel.Rows
             )
             return