diff --git a/src/currency_core/blockchain_storage.cpp b/src/currency_core/blockchain_storage.cpp
index 0d71a151..31b607ca 100644
--- a/src/currency_core/blockchain_storage.cpp
+++ b/src/currency_core/blockchain_storage.cpp
@@ -471,6 +471,7 @@ bool blockchain_storage::init(const std::string& config_folder, const boost::pro
             LOG_PRINT_L0("In the blockchain hash for the block 3076401 is " << h << " while it is expected to be " << b3076401_id <<
               ". Most likely recent blocks are alternative and invalid for the current hardfork, thus we truncate the blockchain, so that block 3076400 becomes new top block...");
             truncate_blockchain(ZANO_HARDFORK_05_AFTER_HEIGHT + 1);
+            m_tx_pool.clear();
           }
         }
         else
diff --git a/src/currency_core/tx_pool.cpp b/src/currency_core/tx_pool.cpp
index d076d147..4c98db89 100644
--- a/src/currency_core/tx_pool.cpp
+++ b/src/currency_core/tx_pool.cpp
@@ -238,18 +238,21 @@ namespace currency
     }
     TIME_MEASURE_FINISH_PD(check_inputs_time);
 
-    if (tx.version > TRANSACTION_VERSION_PRE_HF4)
+    if (!from_core)
     {
-      TIME_MEASURE_START_PD(check_post_hf4_balance);
-      r = check_tx_balance(tx, id);
-      CHECK_AND_ASSERT_MES_CUSTOM(r, false, { tvc.m_verification_failed = true; }, "post-HF4 tx: balance proof is invalid");
-      TIME_MEASURE_FINISH_PD(check_post_hf4_balance);
+      if (tx.version > TRANSACTION_VERSION_PRE_HF4)
+      {
+        TIME_MEASURE_START_PD(check_post_hf4_balance);
+        r = check_tx_balance(tx, id);
+        CHECK_AND_ASSERT_MES_CUSTOM(r, false, { tvc.m_verification_failed = true; }, "post-HF4 tx: balance proof is invalid");
+        TIME_MEASURE_FINISH_PD(check_post_hf4_balance);
 
-      r = process_type_in_variant_container_and_make_sure_its_unique<asset_descriptor_operation>(tx.extra, [&](const asset_descriptor_operation& ado){
+        r = process_type_in_variant_container_and_make_sure_its_unique<asset_descriptor_operation>(tx.extra, [&](const asset_descriptor_operation& ado) {
           asset_op_verification_context avc = { tx, id, ado };
           return m_blockchain.validate_asset_operation(avc, m_blockchain.get_current_blockchain_size());
-        }, true);
-      CHECK_AND_ASSERT_MES_CUSTOM(r, false, { tvc.m_verification_failed = true; }, "post-HF4 tx: asset operation is invalid");
+          }, true);
+        CHECK_AND_ASSERT_MES_CUSTOM(r, false, { tvc.m_verification_failed = true; }, "post-HF4 tx: asset operation is invalid");
+      }
     }
 
     do_insert_transaction(tx, id, blob_size, kept_by_block, tx_fee, ch_inp_res ? max_used_block_id : null_hash, ch_inp_res ? max_used_block_height : 0);