diff --git a/src/Ai/Base/Actions/TravelAction.cpp b/src/Ai/Base/Actions/TravelAction.cpp
index f99f8b29..a2906057 100644
--- a/src/Ai/Base/Actions/TravelAction.cpp
+++ b/src/Ai/Base/Actions/TravelAction.cpp
@@ -28,7 +28,7 @@ bool TravelAction::Execute(Event event)
     for (Unit* unit : targets)
     {
         newTarget = unit;
-        if (!newTarget)
+        if (!newTarget || !newTarget->IsInWorld() || newTarget->IsDuringRemoveFromWorld())
             continue;
 
         if (newTarget->GetMapId() != bot->GetMapId())
diff --git a/src/Ai/Base/Actions/UseItemAction.cpp b/src/Ai/Base/Actions/UseItemAction.cpp
index 690d2d4b..bfb86ef0 100644
--- a/src/Ai/Base/Actions/UseItemAction.cpp
+++ b/src/Ai/Base/Actions/UseItemAction.cpp
@@ -245,8 +245,10 @@ bool UseItemAction::UseItem(Item* item, ObjectGuid goGuid, Item* itemTarget, Uni
         {
             packet << unitTarget->GetGUID();
             targetSelected = true;
-            // If the target is bot or is an enemy, say "on self"
-            if (unitTarget == bot || (unitTarget->IsHostileTo(bot)))
+
+            if (unitTarget == bot || !unitTarget->IsInWorld() || unitTarget->IsDuringRemoveFromWorld())
+                out << " on self";
+            else if (unitTarget->IsHostileTo(bot))
                 out << " on self";
             else
                 out << " on " << unitTarget->GetName();
diff --git a/src/Ai/Base/Value/AttackersValue.cpp b/src/Ai/Base/Value/AttackersValue.cpp
index 3c968589..f6da0aa7 100644
--- a/src/Ai/Base/Value/AttackersValue.cpp
+++ b/src/Ai/Base/Value/AttackersValue.cpp
@@ -258,6 +258,9 @@ bool PossibleAddsValue::Calculate()
 
         if (Unit* add = botAI->GetUnit(guid))
         {
+            if (!add->IsInWorld() || add->IsDuringRemoveFromWorld())
+                continue;
+
             if (!add->GetTarget() && !add->GetThreatMgr().getCurrentVictim() && add->IsHostileTo(bot))
             {
                 for (ObjectGuid const attackerGUID : attackers)
diff --git a/src/Ai/Base/Value/GrindTargetValue.cpp b/src/Ai/Base/Value/GrindTargetValue.cpp
index d1d7f912..7e6168c7 100644
--- a/src/Ai/Base/Value/GrindTargetValue.cpp
+++ b/src/Ai/Base/Value/GrindTargetValue.cpp
@@ -59,26 +59,22 @@ Unit* GrindTargetValue::FindTargetForGrinding(uint32 assistCount)
     for (ObjectGuid const guid : targets)
     {
         Unit* unit = botAI->GetUnit(guid);
-
         if (!unit)
             continue;
 
+        if (!unit->IsInWorld() || unit->IsDuringRemoveFromWorld())
+            continue;
+
         auto& rep = bot->ToPlayer()->GetReputationMgr();
         if (unit->ToCreature() && !unit->ToCreature()->GetCreatureTemplate()->lootid &&
             bot->GetReactionTo(unit) >= REP_NEUTRAL)
-        {
             continue;
-        }
 
         if (!bot->IsHostileTo(unit) && unit->GetNpcFlags() != UNIT_NPC_FLAG_NONE)
-        {
             continue;
-        }
 
         if (!bot->isHonorOrXPTarget(unit))
-        {
             continue;
-        }
 
         if (abs(bot->GetPositionZ() - unit->GetPositionZ()) > INTERACTION_DISTANCE)
             continue;
diff --git a/src/Ai/Base/Value/NearestNpcsValue.cpp b/src/Ai/Base/Value/NearestNpcsValue.cpp
index 1c188d29..a32c007f 100644
--- a/src/Ai/Base/Value/NearestNpcsValue.cpp
+++ b/src/Ai/Base/Value/NearestNpcsValue.cpp
@@ -27,7 +27,16 @@ void NearestHostileNpcsValue::FindUnits(std::list<Unit*>& targets)
     Cell::VisitObjects(bot, searcher, range);
 }
 
-bool NearestHostileNpcsValue::AcceptUnit(Unit* unit) { return unit->IsHostileTo(bot) && !unit->IsPlayer(); }
+bool NearestHostileNpcsValue::AcceptUnit(Unit* unit)
+{
+    if (!unit || !unit->IsInWorld() || unit->IsDuringRemoveFromWorld())
+        return false;
+
+    if (unit->IsPlayer())
+        return false;
+
+    return unit->IsHostileTo(bot);
+}
 
 void NearestVehiclesValue::FindUnits(std::list<Unit*>& targets)
 {
diff --git a/src/Ai/Base/Value/PossibleRpgTargetsValue.cpp b/src/Ai/Base/Value/PossibleRpgTargetsValue.cpp
index 6e78f37f..e9b79deb 100644
--- a/src/Ai/Base/Value/PossibleRpgTargetsValue.cpp
+++ b/src/Ai/Base/Value/PossibleRpgTargetsValue.cpp
@@ -54,6 +54,9 @@ void PossibleRpgTargetsValue::FindUnits(std::list<Unit*>& targets)
 
 bool PossibleRpgTargetsValue::AcceptUnit(Unit* unit)
 {
+    if (!unit || !unit->IsInWorld() || unit->IsDuringRemoveFromWorld())
+        return false;
+
     if (unit->IsHostileTo(bot) || unit->IsPlayer())
         return false;
 
@@ -70,7 +73,8 @@ bool PossibleRpgTargetsValue::AcceptUnit(Unit* unit)
     }
 
     TravelTarget* travelTarget = context->GetValue<TravelTarget*>("travel target")->Get();
-    if (travelTarget->getDestination() && travelTarget->getDestination()->getEntry() == unit->GetEntry())
+    if (travelTarget && travelTarget->getDestination() &&
+        travelTarget->getDestination()->getEntry() == unit->GetEntry())
         return true;
 
     if (urand(1, 100) < 25 && unit->IsFriendlyTo(bot))
@@ -145,6 +149,9 @@ void PossibleNewRpgTargetsValue::FindUnits(std::list<Unit*>& targets)
 
 bool PossibleNewRpgTargetsValue::AcceptUnit(Unit* unit)
 {
+    if (!unit || !unit->IsInWorld() || unit->IsDuringRemoveFromWorld())
+        return false;
+
     if (unit->IsHostileTo(bot) || unit->IsPlayer())
         return false;
 
diff --git a/src/Ai/Raid/Icecrown/Trigger/RaidIccTriggers.cpp b/src/Ai/Raid/Icecrown/Trigger/RaidIccTriggers.cpp
index 55cfe9fc..b9ebb8ca 100644
--- a/src/Ai/Raid/Icecrown/Trigger/RaidIccTriggers.cpp
+++ b/src/Ai/Raid/Icecrown/Trigger/RaidIccTriggers.cpp
@@ -99,7 +99,10 @@ bool IccGunshipCannonNearTrigger::IsActive()
 bool IccGunshipTeleportAllyTrigger::IsActive()
 {
     Unit* boss = bot->FindNearestCreature(NPC_HIGH_OVERLORD_SAURFANG, 100.0f);
-    if (!boss)
+    if (!boss || !boss->IsInWorld() || boss->IsDuringRemoveFromWorld())
+        return false;
+
+    if (!boss->IsAlive())
         return false;
 
     if (!boss->IsHostileTo(bot))
@@ -111,7 +114,10 @@ bool IccGunshipTeleportAllyTrigger::IsActive()
 bool IccGunshipTeleportHordeTrigger::IsActive()
 {
     Unit* boss = bot->FindNearestCreature(NPC_MURADIN_BRONZEBEARD, 100.0f);
-    if (!boss)
+    if (!boss || !boss->IsInWorld() || boss->IsDuringRemoveFromWorld())
+        return false;
+
+    if (!boss->IsAlive())
         return false;
 
     if (!boss->IsHostileTo(bot))
diff --git a/src/Ai/Raid/Ulduar/Trigger/RaidUlduarTriggers.cpp b/src/Ai/Raid/Ulduar/Trigger/RaidUlduarTriggers.cpp
index 89ad7ac5..f883917e 100644
--- a/src/Ai/Raid/Ulduar/Trigger/RaidUlduarTriggers.cpp
+++ b/src/Ai/Raid/Ulduar/Trigger/RaidUlduarTriggers.cpp
@@ -765,9 +765,13 @@ bool FreyaMoveToHealingSporeTrigger::IsActive()
 bool ThorimUnbalancingStrikeTrigger::IsActive()
 {
     Unit* boss = AI_VALUE2(Unit*, "find target", "thorim");
+    if (!boss || !boss->IsInWorld() || boss->IsDuringRemoveFromWorld())
+        return false;
 
-    // Check boss and it is alive
-    if (!boss || !boss->IsAlive() || !boss->IsHostileTo(bot))
+    if (!boss->IsAlive())
+        return false;
+
+    if (!boss->IsHostileTo(bot))
         return false;
 
     return bot->HasAura(SPELL_UNBALANCING_STRIKE);
@@ -804,8 +808,13 @@ bool ThorimMarkDpsTargetTrigger::IsActive()
 
         Unit* boss = AI_VALUE2(Unit*, "find target", "thorim");
 
-        // Check boss and it is alive
-        if (!boss || !boss->IsAlive() || !boss->IsHostileTo(bot))
+        if (!boss || !boss->IsInWorld() || boss->IsDuringRemoveFromWorld())
+            return false;
+
+        if (!boss->IsAlive())
+            return false;
+
+        if (!boss->IsHostileTo(bot))
             return false;
 
         if (boss->GetPositionZ() < ULDUAR_THORIM_AXIS_Z_FLOOR_THRESHOLD && (!currentSkullUnit || !currentSkullUnit->IsAlive()))
@@ -982,9 +991,13 @@ bool ThorimGauntletPositioningTrigger::IsActive()
 bool ThorimArenaPositioningTrigger::IsActive()
 {
     Unit* boss = AI_VALUE2(Unit*, "find target", "thorim");
+    if (!boss || !boss->IsInWorld() || boss->IsDuringRemoveFromWorld())
+        return false;
 
-    // Check boss and it is alive
-    if (!boss || !boss->IsAlive() || !boss->IsHostileTo(bot))
+    if (!boss->IsAlive())
+        return false;
+
+    if (!boss->IsHostileTo(bot))
         return false;
 
     if (boss->GetPositionZ() < ULDUAR_THORIM_AXIS_Z_FLOOR_THRESHOLD)
@@ -1080,9 +1093,13 @@ bool ThorimPhase2PositioningTrigger::IsActive()
         return false;
 
     Unit* boss = AI_VALUE2(Unit*, "find target", "thorim");
+    if (!boss || !boss->IsInWorld() || boss->IsDuringRemoveFromWorld())
+    return false;
 
-    // Check boss and it is alive
-    if (!boss || !boss->IsAlive() || !boss->IsHostileTo(bot))
+    if (!boss->IsAlive())
+        return false;
+
+    if (!boss->IsHostileTo(bot))
         return false;
 
     if (boss->GetPositionZ() > ULDUAR_THORIM_AXIS_Z_FLOOR_THRESHOLD)