diff --git a/app/models/ckb_sync/new_node_data_processor.rb b/app/models/ckb_sync/new_node_data_processor.rb
index ec7d77891..b355a297b 100644
--- a/app/models/ckb_sync/new_node_data_processor.rb
+++ b/app/models/ckb_sync/new_node_data_processor.rb
@@ -1297,10 +1297,8 @@ def build_uncle_blocks!(node_block, local_block_id)
       node_block.uncles.each do |uncle_block|
         header = uncle_block.header
         epoch_info = CkbUtils.parse_epoch_info(header)
-        UncleBlock.create!(
-          block_id: local_block_id,
+        UncleBlock.create_with(
           compact_target: header.compact_target,
-          block_hash: header.hash,
           number: header.number,
           parent_hash: header.parent_hash,
           nonce: header.nonce,
@@ -1313,6 +1311,9 @@ def build_uncle_blocks!(node_block, local_block_id)
           proposals_count: uncle_block.proposals.count,
           epoch: epoch_info.number,
           dao: header.dao
+        ).find_or_create_by!(
+          block_id: local_block_id,
+          block_hash: header.hash
         )
       end
     end
diff --git a/lib/tasks/migration/async_missing_transactions.rake b/lib/tasks/migration/async_missing_transactions.rake
index bd83dc8f5..b06d706e7 100644
--- a/lib/tasks/migration/async_missing_transactions.rake
+++ b/lib/tasks/migration/async_missing_transactions.rake
@@ -12,7 +12,7 @@ namespace :migration do
         txs_count2 = local_block.ckb_transactions.count
         next if txs_count1 == txs_count2
 
-        puts "async missing block number: #{local_block.number} transactions count: #{txs_count1}"
+        puts "async missing block number: #{local_block.number}, rpc transactions count: #{txs_count1}, db transactions count: #{txs_count2}"
 
         node_block = CkbSync::Api.instance.get_block_by_number(local_block.number)
         CkbSync::NewNodeDataProcessor.new.process_block(node_block, refresh_balance: false)