diff --git a/src/g_game.cpp b/src/g_game.cpp
index 629202ea5b..48bda24f5f 100644
--- a/src/g_game.cpp
+++ b/src/g_game.cpp
@@ -1999,7 +1999,7 @@ void G_DoLoadGame ()
 	{
 		// delete the resource file if anything goes wrong in here.
 		if (resfile != nullptr) delete resfile;
-		return;
+		throw;
 	}
 }
 
diff --git a/src/g_level.cpp b/src/g_level.cpp
index 90b31138d2..119cde378d 100644
--- a/src/g_level.cpp
+++ b/src/g_level.cpp
@@ -1512,7 +1512,11 @@ void G_UnSnapshotLevel (bool hubLoad)
 	if (level.info->isValid())
 	{
 		FSerializer arc;
-		if (!arc.OpenReader(&level.info->Snapshot)) return;
+		if (!arc.OpenReader(&level.info->Snapshot))
+		{
+			I_Error("Failed to load savegame");
+			return;
+		}
 
 		G_SerializeLevel (arc, hubLoad);
 		level.FromSnapshot = true;
diff --git a/src/g_shared/a_pickups.cpp b/src/g_shared/a_pickups.cpp
index e80e548183..d24f114bd9 100644
--- a/src/g_shared/a_pickups.cpp
+++ b/src/g_shared/a_pickups.cpp
@@ -23,6 +23,8 @@
 #include "serializer.h"
 
 static FRandom pr_restore ("RestorePos");
+CVAR(Bool, r_pickupflash, true, CVAR_ARCHIVE);
+
 
 IMPLEMENT_CLASS(PClassInventory)
 
@@ -1089,7 +1091,7 @@ void AInventory::Touch (AActor *toucher)
 		if (player != NULL)
 		{
 			PlayPickupSound (player->mo);
-			if (!(ItemFlags & IF_NOSCREENFLASH))
+			if (!(ItemFlags & IF_NOSCREENFLASH) && r_pickupflash)
 			{
 				player->bonuscount = BONUSADD;
 			}
diff --git a/src/p_ceiling.cpp b/src/p_ceiling.cpp
index 32e5d62bed..e90dd2096d 100644
--- a/src/p_ceiling.cpp
+++ b/src/p_ceiling.cpp
@@ -214,6 +214,12 @@ DCeiling::DCeiling (sector_t *sec, double speed1, double speed2, int silent)
 	m_Speed = m_Speed1 = speed1;
 	m_Speed2 = speed2;
 	m_Silent = silent;
+	m_BottomHeight = 0;
+	m_TopHeight = 0;
+	m_Direction = 0;
+	m_Texture = FNullTextureID();
+	m_Tag = 0;
+	m_OldDirection = 0;
 }
 
 //============================================================================
diff --git a/src/p_mobj.cpp b/src/p_mobj.cpp
index 496f52e869..0225049192 100644
--- a/src/p_mobj.cpp
+++ b/src/p_mobj.cpp
@@ -685,11 +685,30 @@ bool AActor::TakeInventory(PClassActor *itemclass, int amount, bool fromdecorate
 
 void AActor::DestroyAllInventory ()
 {
-	while (Inventory != NULL)
+	AInventory *inv = Inventory;
+	if (inv != nullptr)
 	{
-		AInventory *item = Inventory;
-		item->Destroy ();
-		assert (item != Inventory);
+		TArray<AInventory *> toDelete;
+
+		// Delete the list in a two stage approach.
+		// This is necessary because an item may destroy another item (e.g. sister weapons)
+		// which would break the list and leave parts of it undestroyed, maybe doing bad things later.
+		while (inv != nullptr)
+		{
+			toDelete.Push(inv);
+			AInventory *item = inv->Inventory;
+			inv->Inventory = nullptr;
+			inv->Owner = nullptr;
+			inv = item;
+		}
+		for (auto p : toDelete)
+		{
+			// the item may already have been deleted by another one, so check this here to avoid problems.
+			if (!(p->ObjectFlags & OF_EuthanizeMe))
+			{
+				p->Destroy();
+			}
+		}
 	}
 }
 
diff --git a/src/sound/music_hmi_midiout.cpp b/src/sound/music_hmi_midiout.cpp
index 21790784c3..7d9d36926a 100644
--- a/src/sound/music_hmi_midiout.cpp
+++ b/src/sound/music_hmi_midiout.cpp
@@ -657,7 +657,7 @@ DWORD *HMISong::SendCommand (DWORD *events, TrackInfo *track, DWORD delay, ptrdi
 		if (event == MIDI_SYSEX || event == MIDI_SYSEXEND)
 		{
 			len = ReadVarLen(track);
-			if (len >= (MAX_EVENTS-1)*3*4)
+			if (len >= (MAX_EVENTS-1)*3*4 || DeviceType == MDEV_SNDSYS)
 			{ // This message will never fit. Throw it away.
 				track->TrackP += len;
 			}
diff --git a/src/sound/music_smf_midiout.cpp b/src/sound/music_smf_midiout.cpp
index ffcbc9f628..a045998a8d 100644
--- a/src/sound/music_smf_midiout.cpp
+++ b/src/sound/music_smf_midiout.cpp
@@ -598,7 +598,7 @@ DWORD *MIDISong2::SendCommand (DWORD *events, TrackInfo *track, DWORD delay, ptr
 		if (event == MIDI_SYSEX || event == MIDI_SYSEXEND)
 		{
 			len = track->ReadVarLen();
-			if (len >= (MAX_EVENTS-1)*3*4)
+			if (len >= (MAX_EVENTS-1)*3*4 || DeviceType == MDEV_SNDSYS)
 			{ // This message will never fit. Throw it away.
 				track->TrackP += len;
 			}
diff --git a/src/sound/music_xmi_midiout.cpp b/src/sound/music_xmi_midiout.cpp
index a9cbcd2c60..b56e8f6f86 100644
--- a/src/sound/music_xmi_midiout.cpp
+++ b/src/sound/music_xmi_midiout.cpp
@@ -528,7 +528,7 @@ DWORD *XMISong::SendCommand (DWORD *events, EventSource due, DWORD delay, ptrdif
 		if (event == MIDI_SYSEX || event == MIDI_SYSEXEND)
 		{
 			len = track->ReadVarLen();
-			if (len >= (MAX_EVENTS-1)*3*4)
+			if (len >= (MAX_EVENTS-1)*3*4 || DeviceType == MDEV_SNDSYS)
 			{ // This message will never fit. Throw it away.
 				track->EventP += len;
 			}
diff --git a/src/zscript/zcc_expr.cpp b/src/zscript/zcc_expr.cpp
index 0cd399d64b..e1a091b180 100644
--- a/src/zscript/zcc_expr.cpp
+++ b/src/zscript/zcc_expr.cpp
@@ -162,11 +162,11 @@ ZCC_OpProto *ZCC_OpInfoType::FindBestProto(
 		// [[float32 (op) int]] will choose the integer version instead of the floating point
 		// version, which we do not want.
 		int test_dist1 = dist1, test_dist2 = dist2;
-		if (routes[0][cur_route1][0]->ConvertConstant == FtoD)
+		if (test_dist1 > 0 && routes[0][cur_route1][0]->ConvertConstant == FtoD)
 		{
 			test_dist1--;
 		}
-		if (routes[1][cur_route2][0]->ConvertConstant == FtoD)
+		if (test_dist2 > 0 && routes[1][cur_route2][0]->ConvertConstant == FtoD)
 		{
 			test_dist2--;
 		}
diff --git a/wadsrc/static/actors/shared/sharedmisc.txt b/wadsrc/static/actors/shared/sharedmisc.txt
index bfe7d55193..fe5ac72d80 100644
--- a/wadsrc/static/actors/shared/sharedmisc.txt
+++ b/wadsrc/static/actors/shared/sharedmisc.txt
@@ -75,12 +75,14 @@ ACTOR PointPusher
 {
 	+NOBLOCKMAP
 	+INVISIBLE
+	+NOCLIP
 }
 
 ACTOR PointPuller
 {
 	+NOBLOCKMAP
 	+INVISIBLE
+	+NOCLIP
 }
 
 // Bloody gibs -------------------------------------------------------------
diff --git a/wadsrc/static/language.enu b/wadsrc/static/language.enu
index 224764a871..83cddb8c5a 100644
--- a/wadsrc/static/language.enu
+++ b/wadsrc/static/language.enu
@@ -1803,6 +1803,7 @@ DSPLYMNU_DIMCOLOR				= "Dim color";
 DSPLYMNU_MOVEBOB 				= "View bob amount while moving";
 DSPLYMNU_STILLBOB 				= "View bob amount while not moving";
 DSPLYMNU_BOBSPEED				= "Weapon bob speed";
+DSPLYMNU_PIFLASH				= "Show pickup screen flash";
 
 // HUD Options
 HUDMNU_TITLE					= "HUD Options";
diff --git a/wadsrc/static/menudef.txt b/wadsrc/static/menudef.txt
index adcc2d29cd..86420b48f0 100644
--- a/wadsrc/static/menudef.txt
+++ b/wadsrc/static/menudef.txt
@@ -688,6 +688,7 @@ OptionMenu "VideoOptions"
 	Option "$DSPLYMNU_STRETCHSKY",				"r_stretchsky", "OnOff"
 	Option "$DSPLYMNU_DRAWFUZZ",				"r_drawfuzz", "Fuzziness"
 	Slider "$DSPLYMNU_TRANSSOUL",				"transsouls", 0.25, 1.0, 0.05, 2
+	Option "$DSPLYMNU_PIFLASH",					"r_pickupflash", "OnOff"
 	Option "$DSPLYMNU_FAKECONTRAST",			"r_fakecontrast", "Contrast"
 	Option "$DSPLYMNU_ROCKETTRAILS",			"cl_rockettrails", "RocketTrailTypes"
 	Option "$DSPLYMNU_BLOODTYPE",				"cl_bloodtype", "BloodTypes"