diff --git a/src/d_net.cpp b/src/d_net.cpp
index dbe07ccf5..0137d911a 100644
--- a/src/d_net.cpp
+++ b/src/d_net.cpp
@@ -612,6 +612,11 @@ void PlayerIsGone (int netnode, int netconsole)
 		P_DisconnectEffect (players[netconsole].mo);
 		players[netconsole].mo->player = NULL;
 		players[netconsole].mo->Destroy ();
+		if (!(players[netconsole].mo->ObjectFlags & OF_EuthanizeMe))
+		{ // We just destroyed a morphed player, so now the original player
+		  // has taken their place. Destroy that one too.
+			players[netconsole].mo->Destroy();
+		}
 		players[netconsole].mo = NULL;
 		players[netconsole].camera = NULL;
 	}
diff --git a/src/g_shared/a_artifacts.cpp b/src/g_shared/a_artifacts.cpp
index c0dc797fe..0d65bfe44 100644
--- a/src/g_shared/a_artifacts.cpp
+++ b/src/g_shared/a_artifacts.cpp
@@ -1843,24 +1843,26 @@ void APowerMorph::EndEffect( )
 	}
 
 	// Unmorph if possible
-	int savedMorphTics = Player->morphTics;
-	P_UndoPlayerMorph (Player, Player);
-
-	// Abort if unmorph failed; in that case,
-	// set the usual retry timer and return.
-	if (Player->morphTics)
+	if (!bNoCallUndoMorph)
 	{
-		// Transfer retry timeout
-		// to the powerup's timer.
-		EffectTics = Player->morphTics;
-		// Reload negative morph tics;
-		// use actual value; it may
-		// be in use for animation.
-		Player->morphTics = savedMorphTics;
-		// Try again some time later
-		return;
-	}
+		int savedMorphTics = Player->morphTics;
+		P_UndoPlayerMorph (Player, Player);
 
+		// Abort if unmorph failed; in that case,
+		// set the usual retry timer and return.
+		if (Player != NULL && Player->morphTics)
+		{
+			// Transfer retry timeout
+			// to the powerup's timer.
+			EffectTics = Player->morphTics;
+			// Reload negative morph tics;
+			// use actual value; it may
+			// be in use for animation.
+			Player->morphTics = savedMorphTics;
+			// Try again some time later
+			return;
+		}
+	}
 	// Unmorph suceeded
 	Player = NULL;
 }
diff --git a/src/g_shared/a_artifacts.h b/src/g_shared/a_artifacts.h
index 1d775b02b..9987877b0 100644
--- a/src/g_shared/a_artifacts.h
+++ b/src/g_shared/a_artifacts.h
@@ -247,6 +247,7 @@ class APowerMorph : public APowerup
 	DECLARE_CLASS( APowerMorph, APowerup )
 public:
 	void Serialize (FArchive &arc);
+	void SetNoCallUndoMorph() { bNoCallUndoMorph = true; }
 
 	FNameNoInit	PlayerClass, MorphFlash, UnMorphFlash;
 	int MorphStyle;
@@ -256,6 +257,7 @@ protected:
 	void EndEffect ();
 	// Variables
 	player_t *Player;
+	bool bNoCallUndoMorph;	// Because P_UndoPlayerMorph() can call EndEffect recursively
 };
 
 #endif //__A_ARTIFACTS_H__
diff --git a/src/g_shared/a_morph.cpp b/src/g_shared/a_morph.cpp
index 2cd057f3a..ea7d15395 100644
--- a/src/g_shared/a_morph.cpp
+++ b/src/g_shared/a_morph.cpp
@@ -202,6 +202,7 @@ bool P_UndoPlayerMorph (player_t *activator, player_t *player, int unmorphflag,
 		next = item->Inventory;
 		if (item->IsKindOf(RUNTIME_CLASS(APowerMorph)))
 		{
+			static_cast<APowerMorph *>(item)->SetNoCallUndoMorph();
 			item->Destroy();
 		}
 	}
diff --git a/src/g_shared/a_weapons.cpp b/src/g_shared/a_weapons.cpp
index a1400f04c..2813932db 100644
--- a/src/g_shared/a_weapons.cpp
+++ b/src/g_shared/a_weapons.cpp
@@ -558,6 +558,10 @@ bool AWeapon::DepleteAmmo (bool altFire, bool checkEnough, int ammouse)
 
 void AWeapon::PostMorphWeapon ()
 {
+	if (Owner == NULL)
+	{
+		return;
+	}
 	Owner->player->PendingWeapon = WP_NOCHANGE;
 	Owner->player->ReadyWeapon = this;
 	Owner->player->psprites[ps_weapon].sy = WEAPONBOTTOM;