diff --git a/Assets/Cryville/Crtr/EffectGroup.cs b/Assets/Cryville/Crtr/EffectGroup.cs
index 06acfce..f508ae5 100644
--- a/Assets/Cryville/Crtr/EffectGroup.cs
+++ b/Assets/Cryville/Crtr/EffectGroup.cs
@@ -43,14 +43,17 @@ namespace Cryville.Crtr {
 		}
 		public void Emit(float index) {
 			EffectInstance instance;
-			if (!_instances.TryGetValue(index, out instance)) {
+			if (_instances.TryGetValue(index, out instance)) {
+				var i = _endQueue.BinarySearch(instance);
+				_endQueue.RemoveAt(i);
+			}
+			else {
 				_instances.Add(index, instance = _pool.Rent());
 			}
 			instance.Index = index;
 			instance.OnEmit(_time);
-			var i = _endQueue.BinarySearch(instance);
-			if (i < 0) i = ~i;
-			_endQueue.Insert(i, instance);
+			var i2 = ~_endQueue.BinarySearch(instance);
+			_endQueue.Insert(i2, instance);
 		}
 		public void Dispose() {
 			_pool.DisposeAll();