diff --git a/client/ayon_core/hooks/pre_add_last_workfile_arg.py b/client/ayon_core/hooks/pre_add_last_workfile_arg.py
index daea8c5502..bafc075888 100644
--- a/client/ayon_core/hooks/pre_add_last_workfile_arg.py
+++ b/client/ayon_core/hooks/pre_add_last_workfile_arg.py
@@ -30,7 +30,8 @@ class AddLastWorkfileToLaunchArgs(PreLaunchHook):
         "aftereffects",
         "wrap",
         "openrv",
-        "cinema4d"
+        "cinema4d",
+        "silhouette",
     }
     launch_types = {LaunchTypes.local}
 
diff --git a/client/ayon_core/hooks/pre_ocio_hook.py b/client/ayon_core/hooks/pre_ocio_hook.py
index 78fc8c78de..9f5c8c7339 100644
--- a/client/ayon_core/hooks/pre_ocio_hook.py
+++ b/client/ayon_core/hooks/pre_ocio_hook.py
@@ -21,7 +21,8 @@ class OCIOEnvHook(PreLaunchHook):
         "hiero",
         "resolve",
         "openrv",
-        "cinema4d"
+        "cinema4d",
+        "silhouette",
     }
     launch_types = set()
 
diff --git a/client/ayon_core/plugins/publish/validate_file_saved.py b/client/ayon_core/plugins/publish/validate_file_saved.py
index f52998cef3..4f9e84aee0 100644
--- a/client/ayon_core/plugins/publish/validate_file_saved.py
+++ b/client/ayon_core/plugins/publish/validate_file_saved.py
@@ -37,7 +37,7 @@ class ValidateCurrentSaveFile(pyblish.api.ContextPlugin):
     label = "Validate File Saved"
     order = pyblish.api.ValidatorOrder - 0.1
     hosts = ["fusion", "houdini", "max", "maya", "nuke", "substancepainter",
-             "cinema4d"]
+             "cinema4d", "silhouette"]
     actions = [SaveByVersionUpAction, ShowWorkfilesAction]
 
     def process(self, context):
diff --git a/client/ayon_core/tools/utils/views.py b/client/ayon_core/tools/utils/views.py
index b501f1ff11..d8ae94bf0c 100644
--- a/client/ayon_core/tools/utils/views.py
+++ b/client/ayon_core/tools/utils/views.py
@@ -1,7 +1,6 @@
-from ayon_core.resources import get_image_path
 from ayon_core.tools.flickcharm import FlickCharm
 
-from qtpy import QtWidgets, QtCore, QtGui, QtSvg
+from qtpy import QtWidgets, QtCore, QtGui
 
 
 class DeselectableTreeView(QtWidgets.QTreeView):
@@ -19,48 +18,6 @@ class DeselectableTreeView(QtWidgets.QTreeView):
         QtWidgets.QTreeView.mousePressEvent(self, event)
 
 
-class TreeViewSpinner(QtWidgets.QTreeView):
-    size = 160
-
-    def __init__(self, parent=None):
-        super(TreeViewSpinner, self).__init__(parent=parent)
-
-        loading_image_path = get_image_path("spinner-200.svg")
-
-        self.spinner = QtSvg.QSvgRenderer(loading_image_path)
-
-        self.is_loading = False
-        self.is_empty = True
-
-    def paint_loading(self, event):
-        rect = event.rect()
-        rect = QtCore.QRectF(rect.topLeft(), rect.bottomRight())
-        rect.moveTo(
-            rect.x() + rect.width() / 2 - self.size / 2,
-            rect.y() + rect.height() / 2 - self.size / 2
-        )
-        rect.setSize(QtCore.QSizeF(self.size, self.size))
-        painter = QtGui.QPainter(self.viewport())
-        self.spinner.render(painter, rect)
-
-    def paint_empty(self, event):
-        painter = QtGui.QPainter(self.viewport())
-        rect = event.rect()
-        rect = QtCore.QRectF(rect.topLeft(), rect.bottomRight())
-        qtext_opt = QtGui.QTextOption(
-            QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter
-        )
-        painter.drawText(rect, "No Data", qtext_opt)
-
-    def paintEvent(self, event):
-        if self.is_loading:
-            self.paint_loading(event)
-        elif self.is_empty:
-            self.paint_empty(event)
-        else:
-            super(TreeViewSpinner, self).paintEvent(event)
-
-
 class TreeView(QtWidgets.QTreeView):
     """Ultimate TreeView with flick charm and double click signals.
 
diff --git a/client/ayon_core/tools/workfiles/models/workfiles.py b/client/ayon_core/tools/workfiles/models/workfiles.py
index a268a9bd0e..c621a44937 100644
--- a/client/ayon_core/tools/workfiles/models/workfiles.py
+++ b/client/ayon_core/tools/workfiles/models/workfiles.py
@@ -184,9 +184,10 @@ class WorkareaModel:
             return items
 
         for filename in os.listdir(workdir):
+            # We want to support both files and folders. e.g. Silhoutte uses
+            # folders as its project files. So we do not check whether it is
+            # a file or not.
             filepath = os.path.join(workdir, filename)
-            if not os.path.isfile(filepath):
-                continue
 
             ext = os.path.splitext(filename)[1].lower()
             if ext not in self._extensions: