Fixed crash when setting a filter while the game is refreshing the server list

Barotrauma/BarotraumaClient/Source/GUI/GUIComponent.cs

@@ -29,20 +29,12 @@ namespace Barotrauma
             if (ComponentsToUpdate.Contains(this)) return;
             ComponentsToUpdate.Add(this);
             
-            try
-            {
             List<GUIComponent> fixedChildren = new List<GUIComponent>(children);
             foreach (GUIComponent c in fixedChildren)
             {
                 c.AddToGUIUpdateList();
             }
         }
-            catch (Exception e)
-            {
-                DebugConsole.NewMessage("Error in AddToGUIUPdateList! GUIComponent runtime type: "+this.GetType().ToString()+"; children count: "+children.Count.ToString(),Color.Red);
-                throw;
-            }
-        }
 
         public static void ClearUpdateList()
         {
@@ -438,8 +430,6 @@ namespace Barotrauma
 
             }*/
             
-            try
-            {
             //use a fixed list since children can change their order in the main children list
             //TODO: maybe find a more efficient way of handling changes in list order
             List<GUIComponent> fixedChildren = new List<GUIComponent>(children);
@@ -449,12 +439,6 @@ namespace Barotrauma
                 c.Update(deltaTime);
             }
         }
-            catch (Exception e)
-            {
-                DebugConsole.NewMessage("Error in Update! GUIComponent runtime type: " + this.GetType().ToString() + "; children count: " + children.Count.ToString(), Color.Red);
-                throw;
-            }
-        }
 
         public virtual void SetDimensions(Point size, bool expandChildren = false)
         {

Barotrauma/BarotraumaClient/Source/GUI/GUIListBox.cs

@@ -260,8 +260,6 @@ namespace Barotrauma
             if (ComponentsToUpdate.Contains(this)) return;
             ComponentsToUpdate.Add(this);
             
-            try
-            {
             List<GUIComponent> fixedChildren = new List<GUIComponent>(children);
             int lastVisible = 0;
             for (int i = 0; i < fixedChildren.Count; i++)
@@ -277,12 +275,6 @@ namespace Barotrauma
                 lastVisible = i;
                 fixedChildren[i].AddToGUIUpdateList();
             }
-            }
-            catch (Exception e)
-            {
-                DebugConsole.NewMessage("Error in AddToGUIUpdateList! GUIComponent runtime type: " + this.GetType().ToString() + "; children count: " + children.Count.ToString(), Color.Red);
-                throw;
-            }
 
             if (scrollBarEnabled && !scrollBarHidden) scrollBar.AddToGUIUpdateList();
         }

Barotrauma/BarotraumaClient/Source/Screens/ServerListScreen.cs

@@ -127,6 +127,7 @@ namespace Barotrauma
             
             foreach (GUIComponent child in serverList.children)
             {
+                if (!(child.UserData is ServerInfo)) continue;
                 ServerInfo serverInfo = (ServerInfo)child.UserData;
 
                 child.Visible =