- Do not forget to relayout cards on removing a card panel (fixes targeting overlay problems and possibly other "lingering layouting issues".

forge-gui-desktop/src/main/java/forge/view/arcane/CardArea.java

@@ -222,7 +222,7 @@ public class CardArea extends CardPanelContainer implements CardPanelMouseListen
             this.getParent().validate();
         }
 
-    super.doLayout();
+        super.doLayout();
     }
 
     @Override

forge-gui-desktop/src/main/java/forge/view/arcane/CardPanelContainer.java

@@ -297,6 +297,7 @@ public abstract class CardPanelContainer extends SkinnedPanel {
         remove(fromPanel);
         invalidate();
         repaint();
+        this.doLayout();
     }
 
     public final void setCardPanels(final List<CardPanel> cardPanels) {