diff --git a/PKHeX.Core/Legality/Encounters/Generator/EncounterGenerator.cs b/PKHeX.Core/Legality/Encounters/Generator/EncounterGenerator.cs
index e710ab1d2..a5b3a5b32 100644
--- a/PKHeX.Core/Legality/Encounters/Generator/EncounterGenerator.cs
+++ b/PKHeX.Core/Legality/Encounters/Generator/EncounterGenerator.cs
@@ -114,7 +114,7 @@ private static IEnumerable<GBEncounterData> GenerateRawEncounters12(PKM pkm, Gam
             var deferred = new List<IEncounterable>();
             foreach (var t in GetValidEncounterTrades(pkm, vs, game))
             {
-                if (pkm.Format >= 7)
+                if (pkm.Format >= 7 && (t.Generation == 2 || t.GetOT(pkm.Language) != pkm.OT_Name)) // ot length collision
                 {
                     deferred.Add(t);
                     continue;
diff --git a/Tests/PKHeX.Tests/Legality/Legal/Generation 7 Transfer/124 - LOLA - 0F0EBB7A9D04.pk7 b/Tests/PKHeX.Tests/Legality/Legal/Generation 7 Transfer/124 - LOLA - 0F0EBB7A9D04.pk7
new file mode 100644
index 000000000..cb9bcdf8a
Binary files /dev/null and b/Tests/PKHeX.Tests/Legality/Legal/Generation 7 Transfer/124 - LOLA - 0F0EBB7A9D04.pk7 differ