diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index 006c1201..98026a0c 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -351,6 +351,7 @@ class Creature : public MoveableEntity
                                                     const mt::Equip* bullet_meta);
     bool CanShot(bool try_reload);
     void AdjustPos();
+    void OnLand();
 
 protected:
     virtual void OnBuffRemove(Buff& buff);
@@ -372,7 +373,6 @@ private:
     void CheckAbilityUsed();
     void AutoSwitchWeapon();
     void CheckLoadingBullet();
-    void OnLand();
 
 protected:
     bool need_sync_active_player_ = false;
diff --git a/server/gameserver/mapinstance.cc b/server/gameserver/mapinstance.cc
index a12faaa8..932f1fb9 100644
--- a/server/gameserver/mapinstance.cc
+++ b/server/gameserver/mapinstance.cc
@@ -1295,3 +1295,20 @@ bool MapInstance::IsConnectablePoly(dtPolyRef poly_ref)
 {
     return connectable_polys_.find(poly_ref) != connectable_polys_.end();
 }
+
+bool MapInstance::IsValidPos(const glm::vec3& point)
+{
+    if (point.x >= GetMapMeta()->map_width()) {
+        return false;
+    }
+    if (point.x <= 0) {
+        return false;
+    }
+    if (point.z >= GetMapMeta()->map_height()) {
+        return false;
+    }
+    if (point.z <= 0) {
+        return false;
+    }
+    return true;
+}
diff --git a/server/gameserver/mapinstance.h b/server/gameserver/mapinstance.h
index 02ec160f..1cc63223 100644
--- a/server/gameserver/mapinstance.h
+++ b/server/gameserver/mapinstance.h
@@ -62,6 +62,7 @@ class MapInstance : public std::enable_shared_from_this<MapInstance>
     bool GetNearestGrass(const glm::vec3& center, glm::vec3& out_pt);
     void AdjustOnLandPoint(glm::vec3& point);
     bool IsConnectablePoly(dtPolyRef poly_ref);
+    bool IsValidPos(const glm::vec3& point);
 
  private:
     void LoadHouse();
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index 5a77d3a5..407c5f0f 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -30,6 +30,7 @@
 #include "buff.h"
 #include "stats.h"
 #include "guide.h"
+#include "mapinstance.h"
 
 #include "mt/Param.h"
 #include "mt/Equip.h"
@@ -1039,10 +1040,17 @@ void Player::_CMMove(f8::MsgHdr& hdr, const cs::CMMove& msg)
             sand_table_target_pos = std::make_shared<glm::vec3>();
         }
         TypeConvert::FromPb(*sand_table_target_pos, &msg.sand_table_target_pos());
-        if (GlmHelper::IsEqual2D(*sand_table_target_pos, GetPos().ToGlmVec3())) {
+        if (GlmHelper::IsEqual2D(*sand_table_target_pos, GetPos().ToGlmVec3()) ||
+            !room->map_instance->IsValidPos(*sand_table_target_pos)) {
             sand_table_target_pos = nullptr;
         } else {
-            glm::vec3 dir = *sand_table_target_pos - GetPos().ToGlmVec3();
+            glm::vec3 target_dir = *sand_table_target_pos - GetPos().ToGlmVec3();
+            target_dir = glm::vec3(target_dir.x, 0.0f, target_dir.z);
+            float distance = GlmHelper::Norm(target_dir);
+            GlmHelper::Normalize(target_dir);
+            SetMoveDir(target_dir);
+            SetAttackDir(target_dir);
+            GetMovement()->CalcTargetPos(distance);
         }
     } else {
         sand_table_target_pos = nullptr;
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 0a186489..c2ebd0bd 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -1294,6 +1294,17 @@ void Room::UpdateGasInactivePvp()
                     ForwardGasRing(map_meta_->init_gas_ring());
                 }
             }
+            TraverseHumanList
+                (
+                 [] (Human* hum) -> bool
+                 {
+                     hum->RemoveBuffByEffectId(kBET_ThroughWall);
+                     hum->OnLand();
+                     if (hum->GetEntitySubType() == EST_Player) {
+                         GameLog::Instance()->GameStart((Player*)hum);
+                     }
+                     return true;
+                 });
             NotifyUiUpdate();
             NotifyGameStart();
         } else {