diff --git a/language.version b/language.version
index 3a3173cb4..7d4a3703e 100644
--- a/language.version
+++ b/language.version
@@ -1,3 +1,3 @@
 [default]
-SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r478 \cu(Mon 19 Sep 01:02:40 CEST 2022)\c-";
-SWWM_SHORTVER="\cw1.3pre r478 \cu(2022-09-19 01:02:40)\c-";
+SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r479 \cu(Mon 19 Sep 13:12:06 CEST 2022)\c-";
+SWWM_SHORTVER="\cw1.3pre r479 \cu(2022-09-19 13:12:06)\c-";
diff --git a/zscript/items/swwm_ammoitems.zsc b/zscript/items/swwm_ammoitems.zsc
index 729f92595..e2213ea1d 100644
--- a/zscript/items/swwm_ammoitems.zsc
+++ b/zscript/items/swwm_ammoitems.zsc
@@ -233,6 +233,7 @@ Class GoldShellSparkle : Actor
 		+NOGRAVITY;
 		+NOBLOCKMAP;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		+DONTSPLASH;
 		+NOTELEPORT;
 		+FORCEXYBILLBOARD;
diff --git a/zscript/items/swwm_funstuff.zsc b/zscript/items/swwm_funstuff.zsc
index 793fabf38..0f82c3773 100644
--- a/zscript/items/swwm_funstuff.zsc
+++ b/zscript/items/swwm_funstuff.zsc
@@ -372,6 +372,8 @@ Class FancyConfetti : Actor
 		+INTERPOLATEANGLES;
 		+ROLLSPRITE;
 		+ROLLCENTER;
+		+NOINTERACTION;
+		+SYNCHRONIZED;
 		Gravity 0.05;
 		FloatBobPhase 0;
 	}
@@ -564,6 +566,7 @@ Class SuperFancySparkle : Actor
 		+INTERPOLATEANGLES;
 		+FORCEXYBILLBOARD;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		FloatBobPhase 0;
 	}
 	override void PostBeginPlay()
diff --git a/zscript/items/swwm_keys_gesture.zsc b/zscript/items/swwm_keys_gesture.zsc
index 670df8d5a..3c46c5543 100644
--- a/zscript/items/swwm_keys_gesture.zsc
+++ b/zscript/items/swwm_keys_gesture.zsc
@@ -58,7 +58,9 @@ Class SWWMKeyGesture : SWWMItemGesture abstract
 	States
 	{
 	Fire:
-		XZW1 A 3 A_Jump(128,"Fire2","Fire3");
+		XZW1 A 0 A_Jump(256,"Fire1","Fire2","Fire3");
+	Fire1:
+		XZW1 A 3;
 		XZW1 B 3 A_StartSound("demolitionist/handsup",CHAN_WEAPON,CHANF_OVERLAP);
 		XZW1 CDEF 3;
 		XZW1 GHIJKLMNO 4;
diff --git a/zscript/swwm_common_fx.zsc b/zscript/swwm_common_fx.zsc
index 87ad6aea1..1bcad9df0 100644
--- a/zscript/swwm_common_fx.zsc
+++ b/zscript/swwm_common_fx.zsc
@@ -86,6 +86,7 @@ Class SWWMSmoke : Actor
 		+THRUACTORS;
 		+NOTELEPORT;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		Scale .3;
 		FloatBobPhase 0;
 	}
@@ -204,6 +205,7 @@ Class SWWMHalfSmoke : Actor
 		+ROLLCENTER;
 		+NOTELEPORT;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		Scale 0.3;
 		FloatBobPhase 0;
 	}
@@ -288,6 +290,7 @@ Class SWWMBubble : Actor
 		+NOTELEPORT;
 		+THRUACTORS;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		Scale 0.5;
 		FloatBobPhase 0;
 	}
@@ -422,6 +425,7 @@ Class SWWMSpark : Actor
 		+NOTELEPORT;
 		+DONTSPLASH;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		Gravity 0.2;
 		Scale 0.05;
 		FloatBobPhase 0;
@@ -590,6 +594,7 @@ Class SWWMChip : Actor
 		+ROLLCENTER;
 		+FORCEXYBILLBOARD;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		Gravity 0.35;
 		Scale 0.2;
 		FloatBobPhase 0;
@@ -789,6 +794,7 @@ Class SWWMItemFog : Actor
 		+ROLLSPRITE;
 		+ROLLCENTER;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		+FORCEXYBILLBOARD;
 		FloatBobPhase 0;
 	}
@@ -858,6 +864,7 @@ Class SWWMTeleportSparkle : Actor
 		+ROLLCENTER;
 		+FORCEXYBILLBOARD;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		FloatBobPhase 0;
 	}
 	override void Tick()
@@ -967,6 +974,7 @@ Class SWWMTeleportFog : Actor
 		+NOBLOCKMAP;
 		+DONTSPLASH;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		+FORCEXYBILLBOARD;
 		Radius .1;
 		Height 0.;
@@ -1042,6 +1050,7 @@ Class SWWMPickupFlash : Actor
 		+ROLLSPRITE;
 		+ROLLCENTER;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		+FORCEXYBILLBOARD;
 		FloatBobPhase 0;
 	}
@@ -1189,6 +1198,7 @@ Class InvisibleSplasher : Actor
 		Radius 2;
 		Height 4;
 		+NOBLOCKMAP;	// needed to prevent infinite loops with some 3D floor water (yes, you read that right)
+		+SYNCHRONIZED;
 		FloatBobPhase 0;
 	}
 	States
@@ -1314,6 +1324,7 @@ Class SWWMPuff : Actor
 		Height 0.;
 		+NOBLOCKMAP;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		+DONTSPLASH;
 		+NOTELEPORT;
 		+ALWAYSPUFF;
@@ -1415,6 +1426,7 @@ Class SWWMShadow : Actor
 		Height 0.;
 		+NOBLOCKMAP;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		+DONTSPLASH;
 		+NOTELEPORT;
 		FloatBobPhase 0;
@@ -1436,6 +1448,7 @@ Class SWWMBaseSplash : Actor
 		Height 0.;
 		+NOBLOCKMAP;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		+DONTSPLASH;
 		+NOTELEPORT;
 		FloatBobPhase 0;
diff --git a/zscript/swwm_player_fx.zsc b/zscript/swwm_player_fx.zsc
index 7747c7cb6..02fcba8ac 100644
--- a/zscript/swwm_player_fx.zsc
+++ b/zscript/swwm_player_fx.zsc
@@ -277,6 +277,7 @@ Class DashTrail : Actor
 		+DONTSPLASH;
 		+NOTELEPORT;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		+MASTERNOSEE;
 		FloatBobPhase 0;
 	}
@@ -335,6 +336,7 @@ Class DashTrail2 : Actor
 		+DONTSPLASH;
 		+NOTELEPORT;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
 		+MASTERNOSEE;
 		FloatBobPhase 0;
 	}
@@ -388,6 +390,8 @@ Class DemolitionistRadiusShockwaveTail : Actor
 		+DONTSPLASH;
 		+NOTELEPORT;
 		+NOINTERACTION;
+		+SYNCHRONIZED;
+		FloatBobPhase 0;
 	}
 	override void Tick()
 	{
diff --git a/zscript/weapons/swwm_baseweapon_fx.zsc b/zscript/weapons/swwm_baseweapon_fx.zsc
index 832a3e7c5..8e409fd9a 100644
--- a/zscript/weapons/swwm_baseweapon_fx.zsc
+++ b/zscript/weapons/swwm_baseweapon_fx.zsc
@@ -22,6 +22,7 @@ Class SWWMCasing : Actor abstract
 		+NOTELEPORT;
 		+ROLLSPRITE;
 		+ROLLCENTER;
+		+SYNCHRONIZED;
 		Mass 1;
 		Gravity 0.35;
 		BounceType "Hexen";