diff --git a/tests/betting/betting_tests.cpp b/tests/betting/betting_tests.cpp
index dda73b66..92614f46 100644
--- a/tests/betting/betting_tests.cpp
+++ b/tests/betting/betting_tests.cpp
@@ -68,6 +68,61 @@ BOOST_AUTO_TEST_CASE(generate_block)
 }
 #endif
 
+BOOST_AUTO_TEST_CASE(try_create_sport_and_try_again)
+{
+   try
+   {
+     // "even" witnesses will approve the proposal
+     // we're expecting only 5 approvals, 6 needed
+     fc::optional<sport_id_type> sport_id = try_create_sport({{"en", "Ice Hockey"}, {"zh_Hans", "冰球"}, {"ja", "アイスホッケー"}});
+     BOOST_REQUIRE(!sport_id.valid());
+
+     // adding new active witness
+     const auto& witnesses = db.get_global_properties().active_witnesses;
+     ACTOR(nathan);
+     upgrade_to_lifetime_member(nathan_id);
+     trx.clear();
+     witness_id_type nathan_witness_id = create_witness(nathan_id, nathan_private_key).id;
+     // give nathan some voting stake
+     transfer(committee_account, nathan_id, asset(10000000));
+     generate_block();
+     set_expiration( db, trx );
+
+     // "even" witnesses vote for nathan
+     account_update_operation op;
+     op.account = nathan_id;
+     op.new_options = nathan_id(db).options;
+     op.new_options->votes.clear();
+     uint16_t count = -1;
+     uint16_t votes = 0;
+     for (const witness_id_type& witness_id : witnesses)
+     {
+       if (++count % 2)
+          continue;
+       op.new_options->votes.insert(witness_id(db).vote_id);
+       ++votes;
+     }
+     op.new_options->num_witness = votes;
+     op.new_options->num_committee = 0;
+
+     trx.operations.push_back(op);
+     sign( trx, nathan_private_key );
+     PUSH_TX( db, trx );
+     trx.clear();
+
+     generate_blocks(db.get_dynamic_global_properties().next_maintenance_time);
+     // make sure nathan is in active_witnesses
+     auto itr = std::find(witnesses.begin(), witnesses.end(), nathan_witness_id);
+     BOOST_CHECK(itr != witnesses.end());
+
+     // now we're expecting 6 votes for
+     sport_id = try_create_sport({{"en", "Ice Hockey"}, {"zh_Hans", "冰球"}, {"ja", "アイスホッケー"}});
+     BOOST_REQUIRE(sport_id.valid());
+     BOOST_REQUIRE(*sport_id == sport_id_type());
+
+   } FC_LOG_AND_RETHROW()
+}
+
 BOOST_AUTO_TEST_CASE(simple_bet_win)
 {
    try
diff --git a/tests/common/database_fixture.cpp b/tests/common/database_fixture.cpp
index 0ddebf7c..a2b653d7 100644
--- a/tests/common/database_fixture.cpp
+++ b/tests/common/database_fixture.cpp
@@ -1111,8 +1111,9 @@ vector< operation_history_object > database_fixture::get_operation_history( acco
    return result;
 }
 
-void database_fixture::process_operation_by_witnesses(operation op)
+void database_fixture::process_operation_by_witnesses(operation op, bool not_all)
 {
+   uint16_t count = -1;
    const flat_set<witness_id_type>& active_witnesses = db.get_global_properties().active_witnesses;
 
    proposal_create_operation proposal_op;
@@ -1130,6 +1131,13 @@ void database_fixture::process_operation_by_witnesses(operation op)
 
    for (const witness_id_type& witness_id : active_witnesses)
    {
+      if (not_all)
+      {
+          if (++count % 2)
+          {
+             continue;
+          }
+      }
       const witness_object& witness = witness_id(db);
       const account_object& witness_account = witness.witness_account(db);
 
@@ -1144,13 +1152,26 @@ void database_fixture::process_operation_by_witnesses(operation op)
       sign(tx, init_account_priv_key);
 
       db.push_transaction(tx, ~0);
-
       const auto& proposal_idx = db.get_index_type<proposal_index>().indices().get<by_id>();
       if (proposal_idx.find(proposal_id) == proposal_idx.end())
          break;
    }
 }
 
+fc::optional<sport_id_type> database_fixture::try_create_sport(internationalized_string_type name)
+{ try {
+   fc::optional<sport_id_type> result;
+   sport_create_operation sport_create_op;
+   sport_create_op.name = name;
+   process_operation_by_witnesses(sport_create_op, true);
+   const auto& sport_index = db.get_index_type<sport_object_index>().indices().get<by_id>();
+   if (sport_index.rbegin() != sport_index.rend())
+   {
+       result = (*sport_index.rbegin()).id;
+   }
+   return result;
+} FC_CAPTURE_AND_RETHROW( (name) ) }
+
 const sport_object& database_fixture::create_sport(internationalized_string_type name)
 { try {
    sport_create_operation sport_create_op;
diff --git a/tests/common/database_fixture.hpp b/tests/common/database_fixture.hpp
index ae6fe8ec..c2899d9f 100644
--- a/tests/common/database_fixture.hpp
+++ b/tests/common/database_fixture.hpp
@@ -284,7 +284,8 @@ struct database_fixture {
                                                account_id_type dividend_holder_account_id, 
                                                asset_id_type dividend_payout_asset_type) const;
    vector< operation_history_object > get_operation_history( account_id_type account_id )const;
-   void process_operation_by_witnesses(operation op);
+   void process_operation_by_witnesses(operation op, bool not_all = false);
+   fc::optional<sport_id_type> try_create_sport(internationalized_string_type name);
    const sport_object& create_sport(internationalized_string_type name);
    const event_group_object& create_event_group(internationalized_string_type name, sport_id_type sport_id);
    const event_object& create_event(internationalized_string_type name, internationalized_string_type season, event_group_id_type event_group_id);
diff --git a/tests/tests/block_tests.cpp b/tests/tests/block_tests.cpp
index dbdf582a..d79b87cc 100644
--- a/tests/tests/block_tests.cpp
+++ b/tests/tests/block_tests.cpp
@@ -1085,7 +1085,8 @@ BOOST_FIXTURE_TEST_CASE( rsf_missed_blocks, database_fixture )
    FC_LOG_AND_RETHROW()
 }
 
-// the test should be revised
+// the test written in 2015 should be revised, currently it is not possible to push block to db2
+// without skip_witness_signature | skip_witness_schedule_check | skip_authority_check
 BOOST_FIXTURE_TEST_CASE( transaction_invalidated_in_cache, database_fixture )
 {
    try