diff --git a/PKHeX.Core/Saves/SAV5B2W2.cs b/PKHeX.Core/Saves/SAV5B2W2.cs
index c95ac265d..87b6cff34 100644
--- a/PKHeX.Core/Saves/SAV5B2W2.cs
+++ b/PKHeX.Core/Saves/SAV5B2W2.cs
@@ -21,7 +21,7 @@
             EventFlag = EventConst + 0x35E;
             Daycare = 0x20D00;
             PokeDex = 0x21400;
-            PokeDexLanguageFlags = PokeDex + 0x328; // forme flags size is + 8 from bw with new formes (therians)
+            PokeDexLanguageFlags = 0x328; // forme flags size is + 8 from bw with new formes (therians)
             BattleSubway = 0x21B00;
             CGearInfoOffset = 0x1C000;
             CGearDataOffset = 0x52800;
diff --git a/PKHeX.Core/Saves/SAV5BW.cs b/PKHeX.Core/Saves/SAV5BW.cs
index 57ad20f0e..18a29e9af 100644
--- a/PKHeX.Core/Saves/SAV5BW.cs
+++ b/PKHeX.Core/Saves/SAV5BW.cs
@@ -22,7 +22,7 @@
             EventFlag = EventConst + 0x27C;
             Daycare = 0x20E00;
             PokeDex = 0x21600;
-            PokeDexLanguageFlags = PokeDex + 0x320;
+            PokeDexLanguageFlags = 0x320;
             BattleSubway = 0x21D00;
             CGearInfoOffset = 0x1C000;
             CGearDataOffset = 0x52000;
diff --git a/PKHeX.Core/Saves/SAV7.cs b/PKHeX.Core/Saves/SAV7.cs
index 19f6d5677..f785a2785 100644
--- a/PKHeX.Core/Saves/SAV7.cs
+++ b/PKHeX.Core/Saves/SAV7.cs
@@ -142,7 +142,7 @@ namespace PKHeX.Core
             EventFlag = EventConst + (EventConstMax * 2); // After Event Const (u16)*n
             HoF = EventFlag + (EventFlagMax / 8); // After Event Flags (1b)*(1u8/8b)*n
 
-            PokeDexLanguageFlags =  PokeDex + 0x550;
+            PokeDexLanguageFlags = 0x550;
             WondercardData = WondercardFlags + 0x100;
 
             Played = new PlayTime6(this, PlayTime);
@@ -202,7 +202,7 @@ namespace PKHeX.Core
         // Accessible as SAV7
         private int TrainerCard { get; set; } = 0x14000;
         private int Resort { get; set; }
-        public int PokeDexLanguageFlags { get; private set; } = int.MinValue;
+        public int PokeDexLanguageFlags { get; private set; }
         public int Fashion { get; set; } = int.MinValue;
         protected int Record { get; set; } = int.MinValue;
 
diff --git a/PKHeX.Core/Saves/Substructures/PokeDex/PokeDex7.cs b/PKHeX.Core/Saves/Substructures/PokeDex/PokeDex7.cs
index 31efeb28a..a687f8455 100644
--- a/PKHeX.Core/Saves/Substructures/PokeDex/PokeDex7.cs
+++ b/PKHeX.Core/Saves/Substructures/PokeDex/PokeDex7.cs
@@ -41,7 +41,7 @@ namespace PKHeX.WinForms
                 Displayed[i] = SetBits(Parent.Data, ofs, SeenDispLen);
                 ofs += SeenDispLen;
             }
-            LanguageFlags = SetBits(Parent.Data, Parent.PokeDexLanguageFlags, LanguageLen);
+            LanguageFlags = SetBits(Parent.Data, Parent.PokeDex + Parent.PokeDexLanguageFlags, LanguageLen);
         }
 
         public void Write()
@@ -63,7 +63,7 @@ namespace PKHeX.WinForms
                 SetBits(Displayed[i]).CopyTo(Parent.Data, ofs);
                 ofs += SeenDispLen;
             }
-            SetBits(LanguageFlags).CopyTo(Parent.Data, Parent.PokeDexLanguageFlags);
+            SetBits(LanguageFlags).CopyTo(Parent.Data, Parent.PokeDex + Parent.PokeDexLanguageFlags);
         }
 
         public IEnumerable<int> GetAllFormEntries(int spec)
diff --git a/PKHeX.Core/Saves/Substructures/PokeDex/Zukan7.cs b/PKHeX.Core/Saves/Substructures/PokeDex/Zukan7.cs
index b5ad46d03..39ca886c5 100644
--- a/PKHeX.Core/Saves/Substructures/PokeDex/Zukan7.cs
+++ b/PKHeX.Core/Saves/Substructures/PokeDex/Zukan7.cs
@@ -21,7 +21,7 @@ namespace PKHeX.Core
 
         private IList<int> FormBaseSpecies;
 
-        public Zukan7(SaveFile sav, int dex, int langflag) : base(sav, dex, langflag - dex)
+        public Zukan7(SaveFile sav, int dex, int langflag) : base(sav, dex, langflag)
         {
             DexFormIndexFetcher = SAV.USUM ? (Func<int, int, int, int>) DexFormUtil.GetDexFormIndexSM : DexFormUtil.GetDexFormIndexSM;
             LoadDexList();
diff --git a/PKHeX.WinForms/Subforms/Save Editors/Gen5/SAV_Pokedex5.cs b/PKHeX.WinForms/Subforms/Save Editors/Gen5/SAV_Pokedex5.cs
index 2b51fc720..c9e3621d9 100644
--- a/PKHeX.WinForms/Subforms/Save Editors/Gen5/SAV_Pokedex5.cs	
+++ b/PKHeX.WinForms/Subforms/Save Editors/Gen5/SAV_Pokedex5.cs	
@@ -206,7 +206,7 @@ namespace PKHeX.WinForms
 
             // Fill Language arrays
             byte[] langdata = new byte[LangSize];
-            Array.Copy(SAV.Data, SAV.PokeDexLanguageFlags, langdata, 0, LangSize);
+            Array.Copy(SAV.Data, SAV.PokeDex + SAV.PokeDexLanguageFlags, langdata, 0, LangSize);
             BitArray LangRegion = new BitArray(langdata);
             for (int b = 0; b < 493; b++)
             {
@@ -257,7 +257,7 @@ namespace PKHeX.WinForms
                         ldata[i>>3] |= (byte)(1 << (i&7));
                 }
 
-                ldata.CopyTo(SAV.Data, SAV.PokeDexLanguageFlags);
+                ldata.CopyTo(SAV.Data, SAV.PokeDex + SAV.PokeDexLanguageFlags);
             }
             int FormDex = SAV.PokeDex + 0x8 + (brSize * 9);
             formbools.CopyTo(SAV.Data, FormDex);
diff --git a/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_PokedexORAS.cs b/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_PokedexORAS.cs
index 0bebfa81d..b47c6c216 100644
--- a/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_PokedexORAS.cs	
+++ b/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_PokedexORAS.cs	
@@ -210,7 +210,7 @@ namespace PKHeX.WinForms
 
             // Fill Language arrays
             byte[] langdata = new byte[0x280];
-            Array.Copy(SAV.Data, SAV.PokeDexLanguageFlags, langdata, 0, langdata.Length);
+            Array.Copy(SAV.Data, SAV.PokeDex + SAV.PokeDexLanguageFlags, langdata, 0, langdata.Length);
             BitArray LangRegion = new BitArray(langdata);
             for (int b = 0; b < SAV.MaxSpeciesID; b++) // 721 Species
             {
@@ -257,7 +257,7 @@ namespace PKHeX.WinForms
                     ldata[i/8] |= (byte) (1 << i%8);
             }
 
-            ldata.CopyTo(SAV.Data, SAV.PokeDexLanguageFlags);
+            ldata.CopyTo(SAV.Data, SAV.PokeDex + SAV.PokeDexLanguageFlags);
 
             formbools.CopyTo(SAV.Data, SAV.PokeDex + 0x368);
 
@@ -418,7 +418,7 @@ namespace PKHeX.WinForms
             SetEntry();
             SetData();
             if (mnuComplete == sender) // Turn off Italian Petlil
-                SAV.Data[SAV.PokeDexLanguageFlags + 0x1DF] &= 0xFE;
+                SAV.Data[SAV.PokeDex + SAV.PokeDexLanguageFlags + 0x1DF] &= 0xFE;
 
             GetData();
             GetEntry();
diff --git a/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_PokedexXY.cs b/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_PokedexXY.cs
index 9f7d90cb8..e51b296c4 100644
--- a/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_PokedexXY.cs	
+++ b/PKHeX.WinForms/Subforms/Save Editors/Gen6/SAV_PokedexXY.cs	
@@ -210,7 +210,7 @@ namespace PKHeX.WinForms
 
             // Fill Language arrays
             byte[] langdata = new byte[0x280];
-            Array.Copy(SAV.Data, SAV.PokeDexLanguageFlags, langdata, 0, 0x280);
+            Array.Copy(SAV.Data, SAV.PokeDex + SAV.PokeDexLanguageFlags, langdata, 0, 0x280);
             BitArray LangRegion = new BitArray(langdata);
             for (int b = 0; b < 721; b++) // 721 Species
             {
@@ -265,7 +265,7 @@ namespace PKHeX.WinForms
                         ldata[i / 8] |= (byte)(1 << i % 8);
                 }
 
-                ldata.CopyTo(SAV.Data, SAV.PokeDexLanguageFlags);
+                ldata.CopyTo(SAV.Data, SAV.PokeDex + SAV.PokeDexLanguageFlags);
             }
 
             formbools.CopyTo(SAV.Data, SAV.PokeDex + 0x368);
@@ -423,7 +423,7 @@ namespace PKHeX.WinForms
             SetEntry();
             SetData();
             if (mnuComplete == sender) // Turn off Italian Petlil
-                SAV.Data[SAV.PokeDexLanguageFlags + 0x1DF] &= 0xFE;
+                SAV.Data[SAV.PokeDex + SAV.PokeDexLanguageFlags + 0x1DF] &= 0xFE;
 
             GetData();
             GetEntry();