diff --git a/libraries/config/src/config.cpp b/libraries/config/src/config.cpp
index 26c915b210..54fdcfc3d3 100644
--- a/libraries/config/src/config.cpp
+++ b/libraries/config/src/config.cpp
@@ -20,9 +20,9 @@ void dec_json(Json::Value const &json, DBConfig &db_config) {
 
 std::vector<logger::Config> FullNodeConfig::loadLoggingConfigs(const Json::Value &logging) {
   // could be empty if config loaded from json e.g. tests
-  if (!json_file_name.empty()) {
-    last_json_update_time = std::filesystem::last_write_time(std::filesystem::path(json_file_name));
-  }
+  // if (!json_file_name.empty()) {
+  //   last_json_update_time = std::filesystem::last_write_time(std::filesystem::path(json_file_name));
+  // }
   std::vector<logger::Config> res;
   if (!logging.isNull()) {
     if (auto path = getConfigData(logging, {"log_path"}, true); !path.isNull()) {
diff --git a/libraries/core_libs/node/src/node.cpp b/libraries/core_libs/node/src/node.cpp
index cb65d26a3a..1aca413396 100644
--- a/libraries/core_libs/node/src/node.cpp
+++ b/libraries/core_libs/node/src/node.cpp
@@ -50,7 +50,7 @@ void FullNode::init() {
     logging.InitLogging(node_addr);
   }
 
-  conf_.scheduleLoggingConfigUpdate();
+  // conf_.scheduleLoggingConfigUpdate();
 
   LOG_OBJECTS_CREATE("FULLND");
 
diff --git a/libraries/types/pbft_block/src/pbft_block.cpp b/libraries/types/pbft_block/src/pbft_block.cpp
index 54dadeca97..a3f38f8540 100644
--- a/libraries/types/pbft_block/src/pbft_block.cpp
+++ b/libraries/types/pbft_block/src/pbft_block.cpp
@@ -15,7 +15,9 @@ PbftBlock::PbftBlock(dev::RLP const& rlp) {
     dev::bytes extra_data_bytes;
     util::rlp_tuple(util::RLPDecoderRef(rlp, true), prev_block_hash_, dag_block_hash_as_pivot_, order_hash_,
                     prev_state_root_hash_, period_, timestamp_, reward_votes_, extra_data_bytes, signature_);
-    extra_data_ = PbftBlockExtraData(extra_data_bytes);
+    if (!extra_data_bytes.empty()) {
+      extra_data_ = PbftBlockExtraData(extra_data_bytes);
+    }
   } else {
     util::rlp_tuple(util::RLPDecoderRef(rlp, true), prev_block_hash_, dag_block_hash_as_pivot_, order_hash_,
                     prev_state_root_hash_, period_, timestamp_, reward_votes_, signature_);