Projekte/mdga/model/src/main/java/pp/mdga/client/gamestate/turnstate/powercardstate/SwapState.java

@@ -39,6 +39,8 @@ public void enter() {
         ArrayList<UUID> ownPieces = new ArrayList<>(possibleOwnPieces.stream().map(Piece::getUuid).toList());
         ArrayList<UUID> enemyPieces = new ArrayList<>(possibleEnemyPieces.stream().map(Piece::getUuid).toList());
         logic.addNotification(new SelectableSwapNotification(ownPieces, enemyPieces));
+        possibleOwnPieces = null;
+        possibleEnemyPieces = null;
     }
 
     @Override