diff --git a/PKHeX.WinForms/Subforms/PKM Editors/Text.cs b/PKHeX.WinForms/Subforms/PKM Editors/Text.cs
index cbf1ec8f9..2c526a646 100644
--- a/PKHeX.WinForms/Subforms/PKM Editors/Text.cs	
+++ b/PKHeX.WinForms/Subforms/PKM Editors/Text.cs	
@@ -15,6 +15,7 @@ public TrashEditor(TextBoxBase TB_NN, byte[] raw, SaveFile sav)
             InitializeComponent();
             WinFormsUtil.TranslateInterface(this, Main.CurrentLanguage);
             SAV = sav;
+            BytesPerChar = sav.Generation > 3 || sav.GameCube ? 2 : 1;
 
             FinalString = TB_NN.Text;
             Raw = FinalBytes = raw;
@@ -43,6 +44,8 @@ public TrashEditor(TextBoxBase TB_NN, byte[] raw, SaveFile sav)
             CenterToParent();
         }
 
+        private readonly int BytesPerChar;
+
         private readonly List<NumericUpDown> Bytes = new List<NumericUpDown>();
         private readonly Font pkxFont = FontUtil.GetPKXFont(12F);
         public string FinalString;
@@ -161,7 +164,7 @@ private void B_ApplyTrash_Click(object sender, EventArgs e)
                 WinFormsUtil.Alert("Trash byte layer is too long to apply.");
                 return;
             }
-            for (int i = current.Length; i < data.Length; i++)
+            for (int i = current.Length + BytesPerChar; i < data.Length; i++)
                 Bytes[i].Value = data[i];
         }
 
@@ -172,7 +175,7 @@ private void B_ClearTrash_Click(object sender, EventArgs e)
                 Bytes[i].Value = 0;
         }
 
-        private byte[] SetString(string text) => SAV.SetString(text, Raw.Length);
+        private byte[] SetString(string text) => SAV.SetString(text, text.Length);
         private string GetString() => SAV.GetString(Raw, 0, Raw.Length);
 
         // Helpers