From a7f49ff6b2f96a34eca36f33f48d62f3e201c293 Mon Sep 17 00:00:00 2001
From: Grimgravy <sr.alansantos@hotmail.com>
Date: Sat, 14 Mar 2026 08:44:02 -0300
Subject: [PATCH] fix(Core/GridNotifiers): fix ImmuneToPC npcs reacting to
 stealthed players (#21652)

---
 src/server/game/Grids/Notifiers/GridNotifiers.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/server/game/Grids/Notifiers/GridNotifiers.cpp b/src/server/game/Grids/Notifiers/GridNotifiers.cpp
index 36ed17744..62b278b9c 100644
--- a/src/server/game/Grids/Notifiers/GridNotifiers.cpp
+++ b/src/server/game/Grids/Notifiers/GridNotifiers.cpp
@@ -131,6 +131,12 @@ inline void CreatureUnitRelocationWorker(Creature* c, Unit* u)
         return;
     }
 
+    // Prevents AI reaction when immunity flags are active
+    if (c->IsImmuneToNPC())
+    {
+        return;
+    }
+
     if (!c->HasUnitState(UNIT_STATE_SIGHTLESS))
     {
         if (c->IsAIEnabled && c->CanSeeOrDetect(u, false, true))