diff --git a/bin/pt-online-schema-change b/bin/pt-online-schema-change
index bbba173f..b7c7c64b 100755
--- a/bin/pt-online-schema-change
+++ b/bin/pt-online-schema-change
@@ -4281,7 +4281,8 @@ sub recurse_to_slaves {
       PTDEBUG && _d('Connected to', $dp->as_string($slave_dsn));
    };
    if ( $EVAL_ERROR ) {
-      print STDERR "Cannot connect to ", $dp->as_string($slave_dsn), "\n"
+      #TODO REMOVE DEBUG
+      print STDERR "1> Cannot connect to ", $dp->as_string($slave_dsn), "\n"
          or die "Cannot print: $OS_ERROR";
       return;
    }
@@ -5001,7 +5002,7 @@ sub wait {
          my $lag = $get_lag->($lagged_slaves[$i]->{cxn});
          PTDEBUG && _d($lagged_slaves[$i]->{cxn}->name(),
             'slave lag:', $lag);
-         if ( !defined $lag || $lag > $max_lag ) {
+        if ( defined $lag && $lag > $max_lag ) {
             $lagged_slaves[$i]->{lag} = $lag;
          }
          else {
@@ -8734,7 +8735,8 @@ sub main {
                   # to stop lagging.  If any replica is stopped, the tool
                   # waits forever until the replica is started."
                   # https://bugs.launchpad.net/percona-toolkit/+bug/1402051
-                  PTDEBUG && _d('Cannot connect to', $cxn->name(), ':',
+                  #TODO REMOVE DEBUG
+                  PTDEBUG && _d('2> Cannot connect to', $cxn->name(), ':',
                      $EVAL_ERROR);
                   # Make ReplicaLagWaiter::wait() report slave is stopped.
                   return undef; 
@@ -9175,7 +9177,8 @@ sub main {
       }
    };
 
-   if ( $slaves && scalar @$slaves ) {
+   my $table_is_replicated;
+   if ( $slaves && scalar @$slaves && $table_is_replicated) {
       foreach my $slave (@$slaves) {
          my ($pr, $pr_first_report);
          if ( $o->get('progress') ) {
@@ -12884,7 +12887,7 @@ Default character set.
 
 =item * D
 
-dsn: database; copy: yes
+dsn: database; copy: no
 
 Database for the old and new table.
 
@@ -13035,6 +13038,6 @@ Place, Suite 330, Boston, MA  02111-1307  USA.
 
 =head1 VERSION
 
-pt-online-schema-change 3.0.6
+pt-online-schema-change 3.0.7
 
 =cut
diff --git a/t/pt-online-schema-change/alter_active_table.t b/t/pt-online-schema-change/alter_active_table.t
index b3c42a20..f5fe7e43 100644
--- a/t/pt-online-schema-change/alter_active_table.t
+++ b/t/pt-online-schema-change/alter_active_table.t
@@ -165,7 +165,7 @@ else {
 }
 $master_dbh->do("USE pt_osc");
 $master_dbh->do("TRUNCATE TABLE t");
-$master_dbh->do("LOAD DATA LOCAL INFILE '$trunk/t/pt-online-schema-change/samples/basic_no_fks.data' INTO TABLE t");
+$master_dbh->do("LOAD DATA INFILE '$trunk/t/pt-online-schema-change/samples/basic_no_fks.data' INTO TABLE t");
 $master_dbh->do("ANALYZE TABLE t");
 $sb->wait_for_slaves();
 
@@ -215,7 +215,7 @@ is(
 
 $master_dbh->do("USE pt_osc");
 $master_dbh->do("TRUNCATE TABLE t");
-$master_dbh->do("LOAD DATA LOCAL INFILE '$trunk/t/pt-online-schema-change/samples/basic_no_fks.data' INTO TABLE t");
+$master_dbh->do("LOAD DATA INFILE '$trunk/t/pt-online-schema-change/samples/basic_no_fks.data' INTO TABLE t");
 $master_dbh->do("ANALYZE TABLE t");
 $sb->wait_for_slaves();
 
diff --git a/t/pt-online-schema-change/issue-1646713.t b/t/pt-online-schema-change/issue-1646713.t
index 3d716db8..10e529f5 100644
--- a/t/pt-online-schema-change/issue-1646713.t
+++ b/t/pt-online-schema-change/issue-1646713.t
@@ -46,6 +46,11 @@ my $exit_status;
 my $sample  = "t/pt-online-schema-change/samples/";
 
 $sb->load_file('master', "$sample/issue-1646713.sql");
+my $num_rows = 1000;
+my $master_port = 12345;
+
+$master_dbh->do("FLUSH TABLES");
+$sb->wait_for_slaves();
 
 sub start_thread {
    my ($dsn_opts, $sleep_time) = @_;
@@ -53,14 +58,18 @@ sub start_thread {
    my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
    my $dbh = $sb->get_dbh_for('master');
    diag("Thread started: Sleeping $sleep_time seconds before updating the PK field for row with id=1 in test.sbtest");
-   sleep($sleep_time);
+   # We need to lock the tables to prevent osc to really start before we are able to write the row to the table
+   $dbh->do("LOCK TABLES `test`.`o1` WRITE");
+   select(undef, undef, undef, $sleep_time);
    $dbh->do("UPDATE `test`.`o1` SET id=0 WHERE id=1");
+   $dbh->do("UNLOCK TABLES");
    diag("Row updated");
 }
-my $thr = threads->create('start_thread', $dsn_opts, 1);
+my $thr = threads->create('start_thread', $dsn_opts, 0.50);
 $thr->detach();
 threads->yield();
 
+
 diag("Starting osc. A row will be updated in a different thread.");
 my $dir = tempdir( CLEANUP => 1 );
 $output = output(
@@ -71,6 +80,7 @@ $output = output(
          ),
       },
 );
+diag($output);
 
 like(
       $output,
diff --git a/t/pt-online-schema-change/pt-1455.t b/t/pt-online-schema-change/pt-1455.t
new file mode 100644
index 00000000..3861019d
--- /dev/null
+++ b/t/pt-online-schema-change/pt-1455.t
@@ -0,0 +1,94 @@
+#!/usr/bin/env perl
+
+BEGIN {
+    die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
+    unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
+    unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
+};
+
+use strict;
+use warnings FATAL => 'all';
+use threads;
+use threads::shared;
+use Thread::Semaphore;
+
+use English qw(-no_match_vars);
+use Test::More;
+
+use Data::Dumper;
+use PerconaTest;
+use Sandbox;
+use SqlModes;
+use File::Temp qw/ tempdir /;
+
+plan tests => 3;
+
+require "$trunk/bin/pt-online-schema-change";
+
+my $dp = new DSNParser(opts=>$dsn_opts);
+my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
+
+my $master_dbh = $sb->get_dbh_for("master");
+my $master_dsn = $sb->dsn_for("master");
+
+my $slave1_dbh = $sb->get_dbh_for("slave1");
+my $slave1_dsn = $sb->dsn_for("slave1");
+
+# The sandbox servers run with lock_wait_timeout=3 and it's not dynamic
+# so we need to specify --set-vars innodb_lock_wait_timeout=3 else the
+# tool will die.
+my @args = (qw(--set-vars innodb_lock_wait_timeout=3));
+my $output;
+my $exit_status;
+
+diag("Setting replication filters on slave 2");
+$sb->load_file('slave2', "t/pt-online-schema-change/samples/pt-1455_slave.sql");
+diag("Setting replication filters on slave 1");
+$sb->load_file('slave1', "t/pt-online-schema-change/samples/pt-1455_slave.sql");
+diag("Setting replication filters on master");
+$sb->load_file('master', "t/pt-online-schema-change/samples/pt-1455_master.sql",undef, no_wait => 1);
+diag("replication filters set");
+
+my $num_rows = 1000;
+my $master_port = 12345;
+
+diag("Loading $num_rows into the table. This might take some time.");
+diag(`util/mysql_random_data_load_linux_amd64 --host=127.1 --port=$master_port --user=msandbox --password=msandbox employees t1 $num_rows`);
+diag("$num_rows rows loaded. Starting tests.");
+
+$master_dbh->do("FLUSH TABLES");
+
+($output, $exit_status) = full_output(
+    sub { pt_online_schema_change::main(@args, "$master_dsn,D=employees,t=t1",
+            '--execute', '--no-check-replication-filters', 
+            '--alter', "engine=innodb",
+        ),
+    },
+    stderr => 1,
+);
+
+is(
+    $exit_status,
+    0,
+    "PT-1455 Successfully altered. Exit status = 0",
+);
+
+like(
+    $output,
+    qr/Successfully altered/s,
+    "PT-1455 Got successfully altered message.",
+);
+
+$master_dbh->do("DROP DATABASE IF EXISTS employees");
+
+diag("Resetting replication filters on slave 2");
+$sb->load_file('slave2', "t/pt-online-schema-change/samples/pt-1455_reset_slave.sql");
+diag("Resetting replication filters on slave 1");
+$sb->load_file('slave1', "t/pt-online-schema-change/samples/pt-1455_reset_slave.sql");
+
+# #############################################################################
+# Done.
+# #############################################################################
+$sb->wipe_clean($master_dbh);
+ok($sb->ok(), "Sandbox servers") or BAIL_OUT(__FILE__ . " broke the sandbox");
+done_testing;
diff --git a/t/pt-online-schema-change/samples/issue-1646713.sql b/t/pt-online-schema-change/samples/issue-1646713.sql
index e4ac06e0..5f44e4e7 100644
--- a/t/pt-online-schema-change/samples/issue-1646713.sql
+++ b/t/pt-online-schema-change/samples/issue-1646713.sql
@@ -2,40 +2,12 @@ DROP DATABASE IF EXISTS `test`;
 CREATE DATABASE IF NOT EXISTS `test`;
 USE test;
 
--- MySQL dump 10.13  Distrib 5.7.14-8, for debian-linux-gnu (x86_64)
---
--- Host: localhost    Database: test
--- ------------------------------------------------------
--- Server version	5.7.14-8-log
-
-/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
-/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
-/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
-/*!40101 SET NAMES utf8 */;
-/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
-/*!40103 SET TIME_ZONE='+00:00' */;
-/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
-/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
-/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
-/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;
-
---
--- Table structure for table `sbtest`
---
-
 DROP TABLE IF EXISTS `o1`;
-/*!40101 SET @saved_cs_client     = @@character_set_client */;
-/*!40101 SET character_set_client = utf8 */;
 CREATE TABLE `o1` (
-  `id` int
-(10) unsigned NOT NULL AUTO_INCREMENT,
+  `id` int (10) unsigned NOT NULL AUTO_INCREMENT,
   PRIMARY KEY (`id`)
-) ENGINE=InnoDB AUTO_INCREMENT=1100001 DEFAULT CHARSET=latin1;
-/*!40101 SET character_set_client = @saved_cs_client */;
+) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=latin1;
 
---
--- Dumping data for table `sbtest`
---
 
 LOCK TABLES `o1` WRITE;
 /*!40000 ALTER TABLE `o1` DISABLE KEYS */;
@@ -140,16 +112,4 @@ INSERT INTO `o1` VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),
 (980),(981),(982),(983),(984),(985),(986),(987),(988),(989),
 (990),(991),(992),(993),(994),(995),(996),(997),(998),(999),
 (10000);
-/*!40000 ALTER TABLE `o1` ENABLE KEYS */;
 UNLOCK TABLES;
-/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;
-
-/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
-/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
-/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
-/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
-/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
-/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
-/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
-
--- Dump completed on 2017-03-14 15:19:26
diff --git a/t/pt-online-schema-change/samples/pt-1455_master.sql b/t/pt-online-schema-change/samples/pt-1455_master.sql
new file mode 100644
index 00000000..fd6bed3a
--- /dev/null
+++ b/t/pt-online-schema-change/samples/pt-1455_master.sql
@@ -0,0 +1,8 @@
+DROP DATABASE IF EXISTS employees;
+CREATE DATABASE employees;
+-- This table should be replicated
+CREATE TABLE employees.t1 (
+    id INT AUTO_INCREMENT PRIMARY KEY, 
+    f2 INT
+) ENGINE=InnoDB;
+
diff --git a/t/pt-online-schema-change/samples/pt-1455_reset_slave.sql b/t/pt-online-schema-change/samples/pt-1455_reset_slave.sql
new file mode 100644
index 00000000..59c207b0
--- /dev/null
+++ b/t/pt-online-schema-change/samples/pt-1455_reset_slave.sql
@@ -0,0 +1,6 @@
+STOP SLAVE;
+CHANGE REPLICATION FILTER REPLICATE_IGNORE_DB = ();
+CHANGE REPLICATION FILTER REPLICATE_IGNORE_TABLE = ();
+CHANGE REPLICATION FILTER REPLICATE_WILD_IGNORE_TABLE = ();
+RESET SLAVE;
+START SLAVE;
diff --git a/t/pt-online-schema-change/samples/pt-1455_slave.sql b/t/pt-online-schema-change/samples/pt-1455_slave.sql
new file mode 100644
index 00000000..86ee176a
--- /dev/null
+++ b/t/pt-online-schema-change/samples/pt-1455_slave.sql
@@ -0,0 +1,6 @@
+STOP SLAVE;
+CHANGE REPLICATION FILTER REPLICATE_IGNORE_DB = (`ignored_db`);
+CHANGE REPLICATION FILTER REPLICATE_IGNORE_TABLE = (`idb1`.`it1`, `idb1`.`it2`);
+CHANGE REPLICATION FILTER REPLICATE_WILD_IGNORE_TABLE = ('employees.eit%');
+RESET SLAVE;
+START SLAVE;