diff --git a/flixel/addons/effects/FlxTrail.hx b/flixel/addons/effects/FlxTrail.hx
index 6f5112b1..e7caef35 100644
--- a/flixel/addons/effects/FlxTrail.hx
+++ b/flixel/addons/effects/FlxTrail.hx
@@ -244,7 +244,8 @@ class FlxTrail extends #if (flixel < "5.7.0") FlxSpriteGroup #else FlxSpriteCont
 	function cacheValue<T>(array:Array<T>, value:T)
 	{
 		array.unshift(value);
-		FlxArrayUtil.setLength(array, _trailLength);
+		if (array.length > _trailLength)
+			array.resize(_trailLength);
 	}
 
 	public function resetTrail():Void
diff --git a/flixel/addons/nape/FlxNapeTilemap.hx b/flixel/addons/nape/FlxNapeTilemap.hx
index 49122efd..613841f9 100644
--- a/flixel/addons/nape/FlxNapeTilemap.hx
+++ b/flixel/addons/nape/FlxNapeTilemap.hx
@@ -42,7 +42,7 @@ class FlxNapeTilemap extends FlxTilemap
 	{
 		super.loadMapFromCSV(MapData, TileGraphic, TileWidth, TileHeight, AutoTile, StartingIndex, DrawIndex, CollideIndex);
 		_binaryData = new Array<Int>();
-		FlxArrayUtil.setLength(_binaryData, _data.length);
+		_binaryData.resize(_data.length);
 		return this;
 	}
 
@@ -51,7 +51,7 @@ class FlxNapeTilemap extends FlxTilemap
 	{
 		super.loadMapFromArray(MapData, WidthInTiles, HeightInTiles, TileGraphic, TileWidth, TileHeight, AutoTile, StartingIndex, DrawIndex, CollideIndex);
 		_binaryData = new Array<Int>();
-		FlxArrayUtil.setLength(_binaryData, _data.length);
+		_binaryData.resize(_data.length);
 		return this;
 	}
 
@@ -60,7 +60,7 @@ class FlxNapeTilemap extends FlxTilemap
 	{
 		super.loadMapFrom2DArray(MapData, TileGraphic, TileWidth, TileHeight, AutoTile, StartingIndex, DrawIndex, CollideIndex);
 		_binaryData = new Array<Int>();
-		FlxArrayUtil.setLength(_binaryData, _data.length);
+		_binaryData.resize(_data.length);
 		return this;
 	}