diff --git a/CHANGELOG.md b/CHANGELOG.md
index f09bad3..c0d350a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - LethalLib NuGet package now ships with xml docs (wow!!)
 - Enabled embedded debug symbols for easier to read stacktraces for when LethalLib explodes
 
+### Fixed
+
+- Null checks to avoid errors with loading into lobby with empty MapObjects
+
 ## LethalLib [1.0.0]
 
 > [!NOTE]
diff --git a/LethalLib/Modules/Enemies.cs b/LethalLib/Modules/Enemies.cs
index 901f176..4cce05b 100644
--- a/LethalLib/Modules/Enemies.cs
+++ b/LethalLib/Modules/Enemies.cs
@@ -208,7 +208,7 @@ private static void AddEnemyToLevel(SpawnableEnemy spawnableEnemy, SelectableLev
 
         string tagName = string.Empty;
         bool enemyValidToAdd = spawnableEnemy.levelRarities.ContainsKey(Levels.LevelTypes.All)
-            || (spawnableEnemy.customLevelRarities != null && Levels.Compatibility.ContentIncludedToLevelViaTag(spawnableEnemy.customLevelRarities.Keys.ToArray(), level, out tagName))
+            || (spawnableEnemy.customLevelRarities != null && spawnableEnemy.customLevelRarities.Keys != null && Levels.Compatibility.ContentIncludedToLevelViaTag(spawnableEnemy.customLevelRarities.Keys.ToArray(), level, out tagName))
             || (isCurrentLevelFromVanilla && spawnableEnemy.levelRarities.ContainsKey(Levels.LevelTypes.Vanilla))
             || (!isCurrentLevelFromVanilla && spawnableEnemy.levelRarities.ContainsKey(Levels.LevelTypes.Modded))
             || (isCurrentLevelFromVanilla && spawnableEnemy.levelRarities.ContainsKey(currentLevelType))
diff --git a/LethalLib/Modules/Items.cs b/LethalLib/Modules/Items.cs
index 4c891ff..211c427 100644
--- a/LethalLib/Modules/Items.cs
+++ b/LethalLib/Modules/Items.cs
@@ -191,7 +191,7 @@ private static void AddScrapItemToLevel(ScrapItem scrapItem, SelectableLevel lev
 
         string tagName = string.Empty;
         bool itemValidToAdd = scrapItem.levelRarities.ContainsKey(Levels.LevelTypes.All)
-            || (scrapItem.customLevelRarities != null && Levels.Compatibility.ContentIncludedToLevelViaTag(scrapItem.customLevelRarities.Keys.ToArray(), level, out tagName))
+            || (scrapItem.customLevelRarities != null && scrapItem.customLevelRarities.Keys != null && Levels.Compatibility.ContentIncludedToLevelViaTag(scrapItem.customLevelRarities.Keys.ToArray(), level, out tagName))
             || (isCurrentLevelFromVanilla && scrapItem.levelRarities.ContainsKey(Levels.LevelTypes.Vanilla))
             || (!isCurrentLevelFromVanilla && scrapItem.levelRarities.ContainsKey(Levels.LevelTypes.Modded))
             || (isCurrentLevelFromVanilla && scrapItem.levelRarities.ContainsKey(currentLevelType))
diff --git a/LethalLib/Modules/MapObjects.cs b/LethalLib/Modules/MapObjects.cs
index 25da5d8..0b9cf16 100644
--- a/LethalLib/Modules/MapObjects.cs
+++ b/LethalLib/Modules/MapObjects.cs
@@ -118,18 +118,18 @@ private static void AddMapObjectToLevel(RegisteredMapObject mapObject, Selectabl
 
         string tagName = string.Empty;
         bool mapObjectValidToAdd = mapObject.levels.HasFlag(Levels.LevelTypes.All)
-            || Levels.Compatibility.ContentIncludedToLevelViaTag(mapObject.spawnLevelOverrides.ToArray(), level, out tagName)
+            || (mapObject.spawnLevelOverrides != null && Levels.Compatibility.ContentIncludedToLevelViaTag(mapObject.spawnLevelOverrides, level, out tagName))
             || (isCurrentLevelFromVanilla && mapObject.levels.HasFlag(Levels.LevelTypes.Vanilla))
             || (!isCurrentLevelFromVanilla && mapObject.levels.HasFlag(Levels.LevelTypes.Modded))
             || (isCurrentLevelFromVanilla && mapObject.levels.HasFlag(currentLevelType))
-            || (!isCurrentLevelFromVanilla && mapObject.spawnLevelOverrides.Contains(customName));
+            || (!isCurrentLevelFromVanilla && mapObject.spawnLevelOverrides != null && mapObject.spawnLevelOverrides.Contains(customName));
 
         string mapObjectName = "invalid!";
         if (mapObject.mapObject != null)
         {
             mapObjectName = mapObject.mapObject.prefabToSpawn.name;
         }
-        else if (mapObject.outsideObject != null && mapObject.outsideObject != null)
+        else if (mapObject.outsideObject != null)
         {
             mapObjectName = mapObject.outsideObject.spawnableObject.prefabToSpawn.name;
         }