diff --git a/cura/ConvexHullNode.py b/cura/ConvexHullNode.py
index cec9d3d698..02d8ed833c 100644
--- a/cura/ConvexHullNode.py
+++ b/cura/ConvexHullNode.py
@@ -64,8 +64,8 @@ class ConvexHullNode(SceneNode):
             ConvexHullNode.shader.setUniformValue("u_diffuseColor", self._color)
             ConvexHullNode.shader.setUniformValue("u_opacity", 0.6)
 
-        if self.getParent() and self.getParent().callDecoration("getBuildPlateNumber") == Application.getInstance().getBuildPlateModel().activeBuildPlate:
-            if self.getMeshData():
+        if self.getParent():
+            if self.getMeshData() and issubclass(type(self._node), SceneNode) and self._node.callDecoration("getBuildPlateNumber") == Application.getInstance().getBuildPlateModel().activeBuildPlate:
                 renderer.queueNode(self, transparent = True, shader = ConvexHullNode.shader, backface_cull = True, sort = -8)
                 if self._convex_hull_head_mesh:
                     renderer.queueNode(self, shader = ConvexHullNode.shader, transparent = True, mesh = self._convex_hull_head_mesh, backface_cull = True, sort = -8)
diff --git a/resources/themes/cura-light/theme.json b/resources/themes/cura-light/theme.json
index 18f2650e77..5b3e2f019a 100644
--- a/resources/themes/cura-light/theme.json
+++ b/resources/themes/cura-light/theme.json
@@ -394,7 +394,7 @@
         "jobspecs_line": [2.0, 2.0],
 
         "objects_menu_size": [20, 40],
-        "objects_menu_size_collapsed": [15, 15],
+        "objects_menu_size_collapsed": [15, 17],
         "build_plate_selection_size": [15, 5],
         "objects_menu_button": [0.3, 2.7]
     }