For some configurations, you need to turn off the external cache in conntrackd daemon.
Sync {
Mode FTFW {
DisableExternalCache On
}
Workaround:
--- ConntrackSync.pm.old 2018-12-21 05:40:24.000000000 +0500
+++ ConntrackSync.pm 2018-12-31 15:52:28.078441250 +0500
@@ -57,7 +57,7 @@
my $GENERAL_SECTION_START = "General {\n";
my $SYNC_SECTION_START = "Sync {\n";
-my $MODE_SECTION_START = "\tMode FTFW {\n";
+my $MODE_SECTION_START = "\tMode FTFW {\n\t\tDisableExternalCache On\n";
my $MULTICAST_SECTION_START = "\tMulticast {\n";
my $UNICAST_SECTION_START = "\tUDP {\n";
my $OPTIONS_SECTION_START = "\tOptions {\n";