Fix display bug when switching to lobby

forge-gui-desktop/src/main/java/forge/screens/home/online/VSubmenuOnlineLobby.java

@@ -64,6 +64,11 @@ public enum VSubmenuOnlineLobby implements IVSubmenu<CSubmenuOnlineLobby>, IVTop
             });
             container.setLayout(new MigLayout("insets 0, gap 0, ax center, ay center"));
             container.add(btnConnect, "w 300!, h 75!");
+
+            if (container.isShowing()) {
+                container.validate();
+                container.repaint();
+            }
             return;
         }