diff --git a/libraries/chain/db_maint.cpp b/libraries/chain/db_maint.cpp
index 7df4f403f..eaa50d51e 100644
--- a/libraries/chain/db_maint.cpp
+++ b/libraries/chain/db_maint.cpp
@@ -2283,7 +2283,7 @@ void database::perform_son_tasks()
             // Add vote_ids for HIVE and ETHEREUM to all existing SONs
             const auto &all_sons = get_index_type<son_index>().indices().get<by_id>();
             for (const son_object &son : all_sons) {
-               vote_id_type existing_vote_id_bitcoin;
+               const auto existing_vote_id_bitcoin = son.get_bitcoin_vote_id();
                vote_id_type new_vote_id_hive;
                vote_id_type new_vote_id_eth;
 
@@ -2300,7 +2300,7 @@ void database::perform_son_tasks()
                // Duplicate all votes from bitcoin to hive
                const auto &all_accounts = get_index_type<account_index>().indices().get<by_id>();
                for (const auto &account : all_accounts) {
-                  if (account.options.votes.count(existing_vote_id_bitcoin) != 0) {
+                  if (existing_vote_id_bitcoin.valid() && account.options.votes.count(*existing_vote_id_bitcoin) != 0) {
                      modify(account, [new_vote_id_hive](account_object &a) {
                         a.options.votes.insert(new_vote_id_hive);
                      });
diff --git a/libraries/plugins/peerplays_sidechain/peerplays_sidechain_plugin.cpp b/libraries/plugins/peerplays_sidechain/peerplays_sidechain_plugin.cpp
index 6f6747dbe..98ebbbf2a 100644
--- a/libraries/plugins/peerplays_sidechain/peerplays_sidechain_plugin.cpp
+++ b/libraries/plugins/peerplays_sidechain/peerplays_sidechain_plugin.cpp
@@ -100,6 +100,7 @@ class peerplays_sidechain_plugin_impl {
    uint16_t retries_threshold = 150;
 
    bool first_block_skipped;
+   bool son_processing_enabled;
    void on_applied_block(const signed_block &b);
 };
 
@@ -135,7 +136,8 @@ peerplays_sidechain_plugin_impl::peerplays_sidechain_plugin_impl(peerplays_sidec
          }
          return net_handlers;
       }()),
-      first_block_skipped(false) {
+      first_block_skipped(false),
+      son_processing_enabled(false) {
 }
 
 peerplays_sidechain_plugin_impl::~peerplays_sidechain_plugin_impl() {
@@ -871,7 +873,19 @@ void peerplays_sidechain_plugin_impl::settle_sidechain_transactions(sidechain_ty
 
 void peerplays_sidechain_plugin_impl::on_applied_block(const signed_block &b) {
    if (first_block_skipped) {
-      schedule_son_processing();
+      if(son_processing_enabled) {
+         schedule_son_processing();
+      }
+      else
+      {
+         const fc::time_point now_fine = fc::time_point::now();
+         const fc::time_point_sec now = now_fine + fc::microseconds( 500000 );
+         if( plugin.database().get_slot_time(1) >= now )
+         {
+            son_processing_enabled = true;
+            schedule_son_processing();
+         }
+      }
    } else {
       first_block_skipped = true;
    }
diff --git a/libraries/plugins/peerplays_sidechain/sidechain_net_handler.cpp b/libraries/plugins/peerplays_sidechain/sidechain_net_handler.cpp
index 0d19b1791..667f1edc7 100644
--- a/libraries/plugins/peerplays_sidechain/sidechain_net_handler.cpp
+++ b/libraries/plugins/peerplays_sidechain/sidechain_net_handler.cpp
@@ -680,7 +680,7 @@ void sidechain_net_handler::on_applied_block(const signed_block &b) {
             const bool is_tracked_asset =
                   ((sidechain == sidechain_type::bitcoin) && (transfer_op.amount.asset_id == gpo.parameters.btc_asset())) ||
                   ((sidechain == sidechain_type::ethereum) && (transfer_op.amount.asset_id == gpo.parameters.eth_asset())) ||
-                  ((sidechain == sidechain_type::ethereum) && (transfer_op.amount.asset_id != gpo.parameters.btc_asset()) && (transfer_op.amount.asset_id != gpo.parameters.hbd_asset()) && (transfer_op.amount.asset_id != gpo.parameters.hive_asset())) ||
+                  ((sidechain == sidechain_type::ethereum) && (transfer_op.amount.asset_id != gpo.parameters.btc_asset()) && (transfer_op.amount.asset_id != gpo.parameters.hbd_asset()) && (transfer_op.amount.asset_id != gpo.parameters.hive_asset()) && (transfer_op.amount.asset_id != asset_id_type())) ||
                   ((sidechain == sidechain_type::hive) && (transfer_op.amount.asset_id == gpo.parameters.hbd_asset())) ||
                   ((sidechain == sidechain_type::hive) && (transfer_op.amount.asset_id == gpo.parameters.hive_asset()));
 
diff --git a/tests/cli/son.cpp b/tests/cli/son.cpp
index e37585578..ed01be2a7 100644
--- a/tests/cli/son.cpp
+++ b/tests/cli/son.cpp
@@ -40,7 +40,7 @@ class son_test_helper
     {
         fixture_.init_nathan();
         fixture_.generate_blocks(HARDFORK_SON_FOR_ETHEREUM_TIME);
-        fixture_.generate_block();
+        fixture_.generate_maintenance_block();
     }
 
     void create_son(const std::string& account_name, const std::string& son_url,