diff --git a/PKHeX.Core/Legality/LearnSource/Group/LearnGroup1.cs b/PKHeX.Core/Legality/LearnSource/Group/LearnGroup1.cs
index 934ef0562..cce93c31a 100644
--- a/PKHeX.Core/Legality/LearnSource/Group/LearnGroup1.cs
+++ b/PKHeX.Core/Legality/LearnSource/Group/LearnGroup1.cs
@@ -92,7 +92,10 @@ private static void FlagFishyMoveSlots(Span<MoveResult> result, ReadOnlySpan<ush
             return;
 
         Span<ushort> moves = stackalloc ushort[4];
-        GetEncounterMoves(enc, moves);
+        if (enc is IMoveset m)
+            m.Moves.CopyTo(moves);
+        else
+            GetEncounterMoves(enc, moves);
 
         // Count the amount of initial moves not present in the current list.
         int count = CountMissing(current, moves);