Safety checks for NullDrawObject

LightlessSync/PlayerData/Factories/PlayerDataFactory.cs

@@ -98,7 +98,19 @@ public class PlayerDataFactory
 
     private unsafe bool CheckForNullDrawObjectUnsafe(IntPtr playerPointer)
     {
-        return ((Character*)playerPointer)->GameObject.DrawObject == null;
+        if (playerPointer == IntPtr.Zero)
+            return true;
+
+        var character = (Character*)playerPointer;
+
+        if (character == null)
+            return true;
+
+        var gameObject = &character->GameObject;
+        if (gameObject == null)
+            return true;
+
+        return gameObject->DrawObject == null;
     }
 
     private async Task<CharacterDataFragment> CreateCharacterData(GameObjectHandler playerRelatedObject, CancellationToken ct)