diff --git a/simgear/scene/tsync/terrasync.cxx b/simgear/scene/tsync/terrasync.cxx
index 288c8d5b..50c8fbbf 100644
--- a/simgear/scene/tsync/terrasync.cxx
+++ b/simgear/scene/tsync/terrasync.cxx
@@ -986,6 +986,8 @@ void SGTerraSync::WorkerThread::drainWaitingTiles()
                 << " next._dir=" << next._dir
                 << " cacheStatus=" << cacheStatus
                 );
+
+/*
         if (cacheStatus != SyncItem::Invalid) {
             incrementCacheHits();
             SG_LOG(SG_TERRASYNC, SG_BULK, "TerraSync Cache hit for: '" << next._dir << "'");
@@ -997,6 +999,22 @@ void SGTerraSync::WorkerThread::drainWaitingTiles()
         const auto slot = syncSlotForType(next._type);
         SG_LOG(SG_TERRASYNC, SG_INFO, "adding to _syncSlots slot=" << slot);
         _syncSlots[slot].queue.push_back(next);
+*/
+
+//zhongjin 11-14
+
+        if (cacheStatus == SyncItem::Invalid) {
+            const auto slot = syncSlotForType(next._type);
+            SG_LOG(SG_TERRASYNC, SG_INFO, "adding to _syncSlots slot=" << slot);
+            _syncSlots[slot].queue.push_back(next);
+            continue;
+        }
+
+            incrementCacheHits();
+            SG_LOG(SG_TERRASYNC, SG_BULK, "TerraSync Cache hit for: '" << next._dir << "'");
+            next._status = cacheStatus;
+            _freshTiles.push_back(next);
+
     }
 }