From 5d87f3f9545f388c7a3ccd841b344b44ef7e6da8 Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Thu, 29 Dec 2022 19:42:54 -0800
Subject: [PATCH] Update parents of new_mob in Mobject.replace

---
 manimlib/mobject/mobject.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/manimlib/mobject/mobject.py b/manimlib/mobject/mobject.py
index 23389bf0..5e031e97 100644
--- a/manimlib/mobject/mobject.py
+++ b/manimlib/mobject/mobject.py
@@ -394,6 +394,7 @@ class Mobject(object):
         if self in old_submob.parents:
             old_submob.parents.remove(self)
         self.submobjects[index] = new_submob
+        new_submob.parents.append(self)
         self.assemble_family()
         return self