diff --git a/SEWorldGenPlugin/Session/MyGPSManager.cs b/SEWorldGenPlugin/Session/MyGPSManager.cs
index fc248d3..df99781 100644
--- a/SEWorldGenPlugin/Session/MyGPSManager.cs
+++ b/SEWorldGenPlugin/Session/MyGPSManager.cs
@@ -231,7 +231,7 @@ public bool DynamicGpsExists(Guid id, long playerId)
         {
             Tuple<Guid, long> key = new Tuple<Guid, long>(id, playerId);
 
-            if (m_dynamicGpss.ContainsKey(key))
+            if (m_dynamicGpss.ContainsKey(key) && MySession.Static.Gpss.ExistsForPlayer(playerId))
             {
                 return MySession.Static.Gpss[playerId].ContainsKey(m_dynamicGpss[key]);
             }