diff --git a/Maple2.Database/Storage/Game/GameStorage.Map.cs b/Maple2.Database/Storage/Game/GameStorage.Map.cs
index aaeed30d..41d60a8e 100644
--- a/Maple2.Database/Storage/Game/GameStorage.Map.cs
+++ b/Maple2.Database/Storage/Game/GameStorage.Map.cs
@@ -293,10 +293,11 @@ public bool DeleteCube(PlotCube cube) {
         }
 
         public bool InitUgcMap(IEnumerable<UgcMapMetadata> maps) {
-            // If there are entries, we assume it's already initialized.
-            if (Context.UgcMap.Any()) {
-                return true;
-            }
+            HashSet<(int MapId, int Number)> existing = Context.UgcMap
+                .Select(m => new { m.MapId, m.Number })
+                .AsEnumerable()
+                .Select(m => (m.MapId, m.Number))
+                .ToHashSet();
 
             foreach (UgcMapMetadata map in maps) {
                 if (map.Id == Constant.DefaultHomeMapId) {
@@ -304,6 +305,10 @@ public bool InitUgcMap(IEnumerable<UgcMapMetadata> maps) {
                 }
 
                 foreach (UgcMapGroup group in map.Plots.Values) {
+                    if (existing.Contains((map.Id, group.Number))) {
+                        continue;
+                    }
+
                     Context.UgcMap.Add(new UgcMap {
                         MapId = map.Id,
                         Number = group.Number,