diff --git a/src/bonsai/bonsai/bim/module/drawing/decoration.py b/src/bonsai/bonsai/bim/module/drawing/decoration.py
index 2077f25f62..19480b6a0d 100644
--- a/src/bonsai/bonsai/bim/module/drawing/decoration.py
+++ b/src/bonsai/bonsai/bim/module/drawing/decoration.py
@@ -16,7 +16,6 @@
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
 
-import os
 import gpu
 import bpy
 import blf
@@ -29,7 +28,7 @@ import ifcopenshell.util.unit
 import bonsai.tool as tool
 import bonsai.bim.module.drawing.helper as helper
 from pathlib import Path
-from math import pi, sin, cos, tan, acos, atan, degrees, radians, ceil
+from math import pi, sin, cos, acos, atan, degrees, radians
 from bpy.types import SpaceView3D
 from mathutils import Vector, Matrix
 from bpy_extras.view3d_utils import location_3d_to_region_2d
@@ -595,7 +594,8 @@ class BaseDecorator:
         region3d = context.region_data
         text_dir = self.get_annotation_direction(context, obj)
 
-        pos = location_3d_to_region_2d(region, region3d, text_world_position)
+        if not (pos := location_3d_to_region_2d(region, region3d, text_world_position)):
+            return
         props = tool.Drawing.get_text_props(obj)
         text_data = DecoratorData.get_ifc_text_data(obj)
         if props.is_editing:
@@ -728,6 +728,8 @@ class DimensionDecorator(BaseDecorator):
             v1 = Vector(vertices[i1])
             p0 = location_3d_to_region_2d(region, region3d, v0)
             p1 = location_3d_to_region_2d(region, region3d, v1)
+            if not p0 or not p1:
+                return
             text_dir = p1 - p0
             if text_dir.length < 1:
                 continue
@@ -878,6 +880,8 @@ class AngleDecorator(BaseDecorator):
 
             # calculate angle position
             p0, p1, p2 = [location_3d_to_region_2d(region, region3d, p) for p in vertices[i0 : i1 + 2]]
+            if not p0 or not p1 or not p2:
+                continue
             edge0 = p0 - p1
             edge1 = p2 - p1
             radius = min(edge0.length_squared, edge1.length_squared) ** 0.5
@@ -942,6 +946,8 @@ class RadiusDecorator(BaseDecorator):
         spline_points = self.get_spline_points(obj)
 
         p0, p1 = [location_3d_to_region_2d(region, region3d, p) for p in self.get_spline_points(obj)]
+        if not p0 or not p1:
+            return
         element = tool.Ifc.get_entity(obj)
         description = element.Description
         dimension_data = DecoratorData.get_dimension_data(obj)
@@ -974,7 +980,8 @@ class FallDecorator(BaseDecorator):
         region = context.region
         region3d = context.region_data
         dir = Vector((1, 0))
-        pos = location_3d_to_region_2d(region, region3d, self.get_spline_end(obj))
+        if not (pos := location_3d_to_region_2d(region, region3d, self.get_spline_end(obj))):
+            return
 
         spline = obj.data.splines[0]
         spline_points = spline.bezier_points if spline.bezier_points else spline.points
@@ -1165,7 +1172,6 @@ class PlanLevelDecorator(BaseDecorator):
         self.draw_labels(context, obj, self.get_splines(obj))
 
     def draw_labels(self, context, obj, splines):
-        unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
         region = context.region
         region3d = context.region_data
 
@@ -1175,6 +1181,8 @@ class PlanLevelDecorator(BaseDecorator):
 
         for verts in splines:
             p0, p1 = [location_3d_to_region_2d(region, region3d, v) for v in verts[:2]]
+            if not p0 or not p1:
+                continue
             text_dir = p1 - p0
             if text_dir.length < 1:
                 continue
@@ -1441,8 +1449,10 @@ class GridDecorator(BaseDecorator):
         p1 = location_3d_to_region_2d(region, region3d, v1)
         dir = Vector((1, 0))
         text = obj.name.split("/")[1].split(".")[0]
-        self.draw_label(context, text, p0, dir, vcenter=True, gap=0)
-        self.draw_label(context, text, p1, dir, vcenter=True, gap=0)
+        if p0:
+            self.draw_label(context, text, p0, dir, vcenter=True, gap=0)
+        if p1:
+            self.draw_label(context, text, p1, dir, vcenter=True, gap=0)
 
 
 class ElevationDecorator(BaseDecorator):