diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 8ac646ca..ecda7231 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -522,6 +522,13 @@ void wallet2::add_to_last_zc_global_indexs(uint64_t h, uint64_t last_zc_output_i
     }
     else
     {
+      //@#@
+#ifdef _DEBUG
+      if (m_last_zc_global_indexs.begin()->second > last_zc_output_index)
+      {
+        LOG_ERROR("!!!!!!!!!!!!!!!!!");
+      }
+#endif
       //equals, same h but new last_zc_output_index, just update it, should be always bigger then prev
       WLT_THROW_IF_FALSE_WITH_CODE(m_last_zc_global_indexs.begin()->second <= last_zc_output_index,
         "condition m_last_zc_global_indexs.begin()->second " << m_last_zc_global_indexs.begin()->second << " <= last_zc_output_index " << last_zc_output_index << " failed", API_RETURN_CODE_INTERNAL_ERROR);
@@ -3072,6 +3079,12 @@ void wallet2::detach_blockchain(uint64_t including_height)
       ++it;
   }
 
+  //detach in m_last_zc_global_indexs
+  while (m_last_zc_global_indexs.size() && including_height <= m_last_zc_global_indexs.begin()->first )
+  {
+    m_last_zc_global_indexs.erase(m_last_zc_global_indexs.begin());
+  }
+
   //asset descriptors
   handle_rollback_events(including_height);