From f3e7412b2869911648df387452e65c95a4f23563 Mon Sep 17 00:00:00 2001
From: Yanis002 <35189056+Yanis002@users.noreply.github.com>
Date: Wed, 3 Dec 2025 14:30:35 +0100
Subject: [PATCH] fix issue 604

---
 .../z64/exporter/collision/__init__.py            | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/fast64_internal/z64/exporter/collision/__init__.py b/fast64_internal/z64/exporter/collision/__init__.py
index 74f33701c..da8f34b28 100644
--- a/fast64_internal/z64/exporter/collision/__init__.py
+++ b/fast64_internal/z64/exporter/collision/__init__.py
@@ -1,5 +1,4 @@
 import bpy
-import math
 import ctypes
 
 from pathlib import Path
@@ -9,7 +8,16 @@
 from bpy.ops import object
 from typing import Optional
 
-from ....utility import PluginError, CData, toAlnum, unhideAllAndGetHiddenState, restoreHiddenState, indent
+from ....utility import (
+    PluginError,
+    CData,
+    toAlnum,
+    unhideAllAndGetHiddenState,
+    restoreHiddenState,
+    cleanupDuplicatedObjects,
+    indent,
+)
+
 from ...utility import (
     OOTObjectCategorizer,
     convertIntTo2sComplement,
@@ -17,6 +25,7 @@
     ootGetPath,
     ootGetObjectPath,
 )
+
 from ...collision.properties import OOTCollisionExportSettings
 from ..utility import Utility
 from .polygons import CollisionPoly, CollisionPolygons
@@ -278,6 +287,8 @@ def export(original_obj: Object, transform: Matrix, settings: OOTCollisionExport
         else:
             raise PluginError("ERROR: exporting collision with ignore collision enabled!")
 
+        cleanupDuplicatedObjects([obj])
+
     def getCmd(self):
         """Returns the collision header scene command"""