removal of Lobby now runs on Platform.runLater(). Untested.

src/main/java/ch/unibas/dmi/dbis/cs108/BudaLogConfig.java

@@ -19,7 +19,7 @@ public class BudaLogConfig {
     LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
     Configuration config = ctx.getConfiguration();
     LoggerConfig loggerConfig = config.getLoggerConfig(LogManager.ROOT_LOGGER_NAME);
-    loggerConfig.setLevel(Level.INFO); // change level here
+    loggerConfig.setLevel(Level.DEBUG); // change level here
     ctx.updateLoggers();  // This causes all Loggers to refetch information from their LoggerConfig.
   }
 

src/main/java/ch/unibas/dmi/dbis/cs108/multiplayer/client/gui/lounge/LoungeSceneViewController.java

@@ -599,15 +599,26 @@ public class LoungeSceneViewController implements Initializable {
     });
   }
 
+  /**
+   * Should remove the lobby from the lobby list view
+   *
+   * @param data
+   */
   public void removeLobbyFromView(String data) {
     Iterator<LobbyListItem> itr = lobbies.iterator();
     while (itr.hasNext()) {
       LobbyListItem item = itr.next();
       if (item.getLobbyID().equals(data)) {
-        itr.remove();
+        Platform.runLater(new Runnable() {
-        LOGGER.debug(
+          @Override
-            "Made it into removeLobbyFromView if clause for lobby w/ ID: " + item.getLobbyID()
+          public void run() {
-                + " for data passed: " + data);
+            itr.remove();
+            LOGGER.debug(
+                "Made it into removeLobbyFromView if clause for lobby w/ ID: " + item.getLobbyID()
+                    + " for data passed: " + data);
+          }
+        });
+
       }
     }
   }