diff --git a/PKHeX.Core/Legality/Encounters/EncounterSlot/EncounterSlot8.cs b/PKHeX.Core/Legality/Encounters/EncounterSlot/EncounterSlot8.cs
index bc982e858..3cfbca993 100644
--- a/PKHeX.Core/Legality/Encounters/EncounterSlot/EncounterSlot8.cs
+++ b/PKHeX.Core/Legality/Encounters/EncounterSlot/EncounterSlot8.cs
@@ -52,7 +52,9 @@ public OverworldCorrelation8Requirement GetRequirement(PKM pk)
 
         public bool IsOverworldCorrelationCorrect(PKM pk)
         {
-            return Overworld8RNG.ValidateOverworldEncounter(pk);
+            var area = (EncounterArea8) Area;
+            var flawless = area.PermitCrossover ? -1 : 0;
+            return Overworld8RNG.ValidateOverworldEncounter(pk, flawless: flawless);
         }
 
         public override EncounterMatchRating GetMatchRating(PKM pkm)
diff --git a/PKHeX.Core/Legality/RNG/Overworld8RNG.cs b/PKHeX.Core/Legality/RNG/Overworld8RNG.cs
index 5fe2c21fa..55eaf6c21 100644
--- a/PKHeX.Core/Legality/RNG/Overworld8RNG.cs
+++ b/PKHeX.Core/Legality/RNG/Overworld8RNG.cs
@@ -175,9 +175,8 @@ private static bool IsValidSequence(PKM pk, int[] template, ref Xoroshiro128Plus
         {
             for (int i = 0; i < 6; i++)
             {
-                if (template[i] != UNSET)
-                    continue;
-                var expect = (int) rng.NextInt(32);
+                var temp = template[i];
+                var expect = temp == UNSET ? (int)rng.NextInt(32) : temp;
                 var actual = i switch
                 {
                     0 => pk.IV_HP,