diff --git a/src/doomdef.h b/src/doomdef.h
index 42b516850..1e0abadaf 100644
--- a/src/doomdef.h
+++ b/src/doomdef.h
@@ -330,7 +330,8 @@ enum : unsigned int
 	COMPATF2_PUSHWINDOW		= 1 << 6,	// Disable the window check in CheckForPushSpecial()
 	COMPATF2_CHECKSWITCHRANGE = 1 << 7,	// Enable buggy CheckSwitchRange behavior
 	COMPATF2_EXPLODE1		= 1 << 8,	// No vertical explosion thrust
-	COMPATF2_EXPLODE2		= 1 << 9	// Use original explosion code throughout.
+	COMPATF2_EXPLODE2		= 1 << 9,	// Use original explosion code throughout.
+	COMPATF2_RAILING		= 1 << 10,	// Bugged Strife railings.
 };
 
 // Emulate old bugs for select maps. These are not exposed by a cvar
diff --git a/src/events.cpp b/src/events.cpp
index 5b39d7f54..69de8cca5 100755
--- a/src/events.cpp
+++ b/src/events.cpp
@@ -46,6 +46,13 @@
 EventManager staticEventManager;
 EventManager eventManager;
 
+void EventManager::CallOnRegister()
+{
+	for (DStaticEventHandler* handler = FirstEventHandler; handler; handler = handler->next)
+	{
+		handler->OnRegister();
+	}
+}
 
 bool EventManager::RegisterHandler(DStaticEventHandler* handler)
 {
diff --git a/src/events.h b/src/events.h
index 79c75023a..7608dfa1a 100755
--- a/src/events.h
+++ b/src/events.h
@@ -240,6 +240,8 @@ struct EventManager
 	~EventManager() { Shutdown(); }
 	bool ShouldCallStatic(bool forplay);
 
+	// for use after loading a savegame. The old handler explicitly reinstalled all handlers instead of doing a list deserialization which resulted in OnRegister being called even when a save was loaded.
+	void CallOnRegister();
 	// register
 	bool RegisterHandler(DStaticEventHandler* handler);
 	// unregister
diff --git a/src/gamedata/g_mapinfo.cpp b/src/gamedata/g_mapinfo.cpp
index 969affe21..6f7d88694 100644
--- a/src/gamedata/g_mapinfo.cpp
+++ b/src/gamedata/g_mapinfo.cpp
@@ -1644,6 +1644,7 @@ MapFlagHandlers[] =
 	{ "compat_checkswitchrange",		MITYPE_COMPATFLAG, 0, COMPATF2_CHECKSWITCHRANGE },
 	{ "compat_explode1",				MITYPE_COMPATFLAG, 0, COMPATF2_EXPLODE1 },
 	{ "compat_explode2",				MITYPE_COMPATFLAG, 0, COMPATF2_EXPLODE2 },
+	{ "compat_railing",					MITYPE_COMPATFLAG, 0, COMPATF2_RAILING },
 	{ "cd_start_track",					MITYPE_EATNEXT,	0, 0 },
 	{ "cd_end1_track",					MITYPE_EATNEXT,	0, 0 },
 	{ "cd_end2_track",					MITYPE_EATNEXT,	0, 0 },
diff --git a/src/gamedata/g_mapinfo.h b/src/gamedata/g_mapinfo.h
index f9cd2f6f4..f4c74de08 100644
--- a/src/gamedata/g_mapinfo.h
+++ b/src/gamedata/g_mapinfo.h
@@ -225,7 +225,7 @@ enum ELevelFlags : unsigned int
 	LEVEL2_FORCETEAMPLAYOFF		= 0x00080000,
 
 	LEVEL2_CONV_SINGLE_UNFREEZE	= 0x00100000,
-	LEVEL2_RAILINGHACK			= 0x00200000,	// but UDMF requires them to be separate to have more control
+	//			= 0x00200000,	// unused, was LEVEL2_RAILINGHACK
 	LEVEL2_DUMMYSWITCHES		= 0x00400000,
 	LEVEL2_HEXENHACK			= 0x00800000,	// Level was defined in a Hexen style MAPINFO
 
diff --git a/src/gamedata/stringtable.cpp b/src/gamedata/stringtable.cpp
index a710ac000..3505470c2 100644
--- a/src/gamedata/stringtable.cpp
+++ b/src/gamedata/stringtable.cpp
@@ -97,7 +97,7 @@ TArray<TArray<FString>> FStringTable::parseCSV(const TArray<uint8_t> &buffer)
 			while (vend > vcopy && myisspace((unsigned char)vend[-1])) *--vend = 0;	// skip over trailing whitespace
 	*/
 
-	for (int i = 0; i < bufLength; ++i)
+	for (size_t i = 0; i < bufLength; ++i)
 	{
 		if (buffer[i] == '"')
 		{
diff --git a/src/maploader/compatibility.cpp b/src/maploader/compatibility.cpp
index 11283dbe1..63586a1a7 100644
--- a/src/maploader/compatibility.cpp
+++ b/src/maploader/compatibility.cpp
@@ -167,6 +167,7 @@ static FCompatOption Options[] =
 	{ "checkswitchrange",		COMPATF2_CHECKSWITCHRANGE, SLOT_COMPAT2 },
 	{ "explode1",				COMPATF2_EXPLODE1, SLOT_COMPAT2 },
 	{ "explode2",				COMPATF2_EXPLODE2, SLOT_COMPAT2 },
+	{ "railing",				COMPATF2_RAILING, SLOT_COMPAT2 },
 	{ NULL, 0, 0 }
 };
 
diff --git a/src/maploader/maploader.cpp b/src/maploader/maploader.cpp
index 81da37591..fb5866d79 100644
--- a/src/maploader/maploader.cpp
+++ b/src/maploader/maploader.cpp
@@ -3004,11 +3004,6 @@ void MapLoader::LoadLevel(MapData *map, const char *lumpname, int position)
 
 	if (!map->HasBehavior && !map->isText)
 	{
-		// set compatibility flags
-		if (gameinfo.gametype == GAME_Strife)
-		{
-			Level->flags2 |= LEVEL2_RAILINGHACK;
-		}
 		Level->flags2 |= LEVEL2_DUMMYSWITCHES;
 	}
 
diff --git a/src/maploader/udmf.cpp b/src/maploader/udmf.cpp
index b8eac3744..a1caea659 100644
--- a/src/maploader/udmf.cpp
+++ b/src/maploader/udmf.cpp
@@ -2161,7 +2161,7 @@ public:
 			case NAME_Strife:
 				namespace_bits = St;
 				Level->Translator = P_LoadTranslator("xlat/strife_base.txt");
-				Level->flags2 |= LEVEL2_DUMMYSWITCHES|LEVEL2_RAILINGHACK;
+				Level->flags2 |= LEVEL2_DUMMYSWITCHES;
 				floordrop = true;
 				break;
 			default:
diff --git a/src/p_map.cpp b/src/p_map.cpp
index 00183fd10..6f7165b4c 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -976,7 +976,7 @@ bool PIT_CheckLine(FMultiBlockLinesIterator &mit, FMultiBlockLinesIterator::Chec
 		// better than Strife's handling of rails, which lets you jump into rails
 		// from either side. How long until somebody reports this as a bug and I'm
 		// forced to say, "It's not a bug. It's a feature?" Ugh.
-		(!(tm.thing->Level->flags2 & LEVEL2_RAILINGHACK) ||
+		(!(tm.thing->Level->i_compatflags2 & COMPATF2_RAILING) ||
 		open.bottom == tm.thing->Sector->floorplane.ZatPoint(ref)))
 	{
 		open.bottom += 32;
diff --git a/src/p_saveg.cpp b/src/p_saveg.cpp
index 7421185ee..b7584bb1d 100644
--- a/src/p_saveg.cpp
+++ b/src/p_saveg.cpp
@@ -994,6 +994,7 @@ void FLevelLocals::Serialize(FSerializer &arc, bool hubload)
 	// [ZZ] serialize events
 	arc("firstevent", localEventManager->FirstEventHandler)
 		("lastevent", localEventManager->LastEventHandler);
+	localEventManager->CallOnRegister();
 	Thinkers.SerializeThinkers(arc, hubload);
 	arc("polyobjs", Polyobjects);
 	SerializeSubsectors(arc, "subsectors");
diff --git a/src/rendering/gl/shaders/gl_postprocessshader.cpp b/src/rendering/gl/shaders/gl_postprocessshader.cpp
index 4f73e75b2..d197e11cf 100644
--- a/src/rendering/gl/shaders/gl_postprocessshader.cpp
+++ b/src/rendering/gl/shaders/gl_postprocessshader.cpp
@@ -221,7 +221,7 @@ void PostProcessShaderInstance::BindTextures()
 		{
 			glUniform1i(location, textureUnit);
 
-			glActiveTexture(GL_TEXTURE0 + 1);
+			glActiveTexture(GL_TEXTURE0 + textureUnit);
 			auto it = mTextureHandles.find(tex);
 			if (it == mTextureHandles.end())
 			{
diff --git a/wadsrc/static/mapinfo/strife.txt b/wadsrc/static/mapinfo/strife.txt
index b4649c262..d38f742e6 100644
--- a/wadsrc/static/mapinfo/strife.txt
+++ b/wadsrc/static/mapinfo/strife.txt
@@ -627,6 +627,7 @@ map MAP04 LOOKUP "TXT_STRIFE_MAP04"
 	sky1 = "SKYMNT02"
 	music = "D_FAST"
 	cluster = 1
+	compat_railing
 }
 
 map MAP05 LOOKUP "TXT_STRIFE_MAP05"
diff --git a/wadsrc/static/menudef.txt b/wadsrc/static/menudef.txt
index d625c05bb..34e3ec9eb 100644
--- a/wadsrc/static/menudef.txt
+++ b/wadsrc/static/menudef.txt
@@ -1662,6 +1662,7 @@ OptionMenu "CompatPhysicsMenu" protected
 	Option "$CMPTMNU_MISSILECLIP",					"compat_MISSILECLIP", "YesNo"
 	Option "$CMPTMNU_EXPLODE1",						"compat_explode1", "YesNo"
 	Option "$CMPTMNU_EXPLODE2",						"compat_explode2", "YesNo"
+	Option "$CMPTMNU_RAILINGHACK",					"compat_railing", "YesNo"
 	Class "CompatibilityMenu"
 }
 
diff --git a/wadsrc/static/zscript/constants.zs b/wadsrc/static/zscript/constants.zs
index 4fdc29fda..ad3065fe4 100644
--- a/wadsrc/static/zscript/constants.zs
+++ b/wadsrc/static/zscript/constants.zs
@@ -1341,5 +1341,6 @@ enum ECompatFlags
 	COMPATF2_PUSHWINDOW		= 1 << 6,	// Disable the window check in CheckForPushSpecial()
 	COMPATF2_CHECKSWITCHRANGE = 1 << 7,	// Enable buggy CheckSwitchRange behavior
 	COMPATF2_EXPLODE1		= 1 << 8,	// No vertical explosion thrust
-	COMPATF2_EXPLODE2		= 1 << 9	// Use original explosion code throughout.
+	COMPATF2_EXPLODE2		= 1 << 9,	// Use original explosion code throughout.
+	COMPATF2_RAILING		= 1 << 10,	// Bugged Strife railings.
 };
diff --git a/wadsrc/static/zscript/level_compatibility.zs b/wadsrc/static/zscript/level_compatibility.zs
index 0c83e8e64..4ed450d9a 100644
--- a/wadsrc/static/zscript/level_compatibility.zs
+++ b/wadsrc/static/zscript/level_compatibility.zs
@@ -892,6 +892,12 @@ class LevelCompatibility native play
 				break;
 			}
 
+			case '8D7A24B169717907DDA8399D8C1655DF': // strife1.wad map15
+			{
+				SetWallTexture(319, Line.back, Side.top, "WALTEK21");
+				break;
+			}
+
 			case 'DB31D71B11E3E4393B9C0CCB44A8639F': // rop_2015.wad e1m5
 			{
 				// Lower floor a bit so secret switch becomes accessible
diff --git a/wadsrc/static/zscript/ui/menu/optionmenuitems.zs b/wadsrc/static/zscript/ui/menu/optionmenuitems.zs
index 246710e94..c4b65a46d 100644
--- a/wadsrc/static/zscript/ui/menu/optionmenuitems.zs
+++ b/wadsrc/static/zscript/ui/menu/optionmenuitems.zs
@@ -811,8 +811,8 @@ class OptionMenuSliderBase : OptionMenuItem
 			lm.ReleaseFocus();
 		}
 
-		int slide_left = mDrawX+8*CleanXfac_1;
-		int slide_right = slide_left + (10*8*CleanXfac_1 >> mSliderShort);	// 12 char cells with 8 pixels each.
+		int slide_left = mDrawX+16*CleanXfac_1;
+		int slide_right = slide_left + (10*16*CleanXfac_1 >> mSliderShort);	// 10 char cells with 16 pixels each.
 
 		if (type == Menu.MOUSE_Click)
 		{
diff --git a/wadsrc_extra/static/filter/game-strife/fonts/defsmallfont/00C0.lmp b/wadsrc_extra/static/filter/game-strife/fonts/defsmallfont/00C0.lmp
index 0ba3368a1..f6a85de06 100644
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diff --git a/wadsrc_extra/static/filter/game-strife/fonts/defsmallfont/00C1.lmp b/wadsrc_extra/static/filter/game-strife/fonts/defsmallfont/00C1.lmp
index c2993945f..4f9cee771 100644
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diff --git a/wadsrc_extra/static/filter/game-strife/fonts/defsmallfont/00C2.lmp b/wadsrc_extra/static/filter/game-strife/fonts/defsmallfont/00C2.lmp
index acea55a33..0e1ca2431 100644
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index 2ae54ea14..27eab31ac 100644
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index 7368e46b3..5b484d579 100644
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index 0daaba4ec..80788d6f9 100644
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