diff --git a/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm b/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm
index 6e6dcf9a8..43359f297 100644
--- a/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm
+++ b/scripts/ZoneMinder/lib/ZoneMinder/Filter.pm
@@ -221,7 +221,7 @@ sub Sql {
         } else {
           ( my $stripped_value = $value ) =~ s/^["\']+?(.+)["\']+?$/$1/;
           # Empty value will result in () from split
-          foreach my $temp_value ( $stripped_value ? split( /["'\s]*?,["'\s]*?/, $stripped_value ) : $stripped_value ) {
+          foreach my $temp_value ( $stripped_value ne '' ? split( /["'\s]*?,["'\s]*?/, $stripped_value ) : $stripped_value ) {
             if ( $term->{attr} eq 'AlarmedZoneId' ) {
               $value = '(SELECT * FROM Stats WHERE EventId=E.Id AND Score > 0 AND ZoneId='.$value.')';
             } elsif ( $term->{attr} =~ /^MonitorName/ ) {
@@ -313,7 +313,7 @@ sub Sql {
               $self->{Sql} .= ' IS NOT '.$value;
             } elsif ( $term->{op} eq '=[]' or $term->{op} eq 'IN' ) {
               $self->{Sql} .= ' IN ('.join(',', @value_list).")";
-            } elsif ( $term->{op} eq '![]' ) {
+            } elsif ( $term->{op} eq '![]' or $term->{op} eq 'NOT IN') {
               $self->{Sql} .= ' NOT IN ('.join(',', @value_list).')';
             } elsif ( $term->{op} eq 'LIKE' ) {
               $self->{Sql} .= ' LIKE '.$value;
diff --git a/src/zm_monitor.cpp b/src/zm_monitor.cpp
index 4b4ae0582..2beb2ab64 100644
--- a/src/zm_monitor.cpp
+++ b/src/zm_monitor.cpp
@@ -2163,7 +2163,7 @@ bool Monitor::Analyse() {
                 ref_image.Blend(y_image, ( state==ALARM ? alarm_ref_blend_perc : ref_blend_perc ));
               } else if (snap->image) {
                 Debug(1, "Blending because %p and format %d != %d, %d", snap->in_frame,
-                    snap->in_frame->format,
+                    (snap->in_frame ? snap->in_frame->format : -1),
                     AV_PIX_FMT_YUV420P,
                     AV_PIX_FMT_YUVJ420P
                     );
@@ -2683,7 +2683,7 @@ bool Monitor::Decode() {
 
     if (config.timestamp_on_capture) {
       Debug(3, "Timestamping");
-      TimestampImage(packet->image, packet->timestamp);
+      TimestampImage(capture_image, packet->timestamp);
     }
 
     image_buffer[index]->Assign(*(packet->image));
diff --git a/src/zm_monitor_monitorlink.cpp b/src/zm_monitor_monitorlink.cpp
index 95432388a..9e7a60d49 100644
--- a/src/zm_monitor_monitorlink.cpp
+++ b/src/zm_monitor_monitorlink.cpp
@@ -24,6 +24,7 @@
 #if ZM_MEM_MAPPED
 #include <sys/mman.h>
 #include <fcntl.h>
+#include <unistd.h>
 #else // ZM_MEM_MAPPED
 #include <sys/ipc.h>
 #include <sys/shm.h>
diff --git a/web/ajax/modals/filterdebug.php b/web/ajax/modals/filterdebug.php
index f3a961874..d3ffaaf01 100644
--- a/web/ajax/modals/filterdebug.php
+++ b/web/ajax/modals/filterdebug.php
@@ -11,13 +11,20 @@
 <?php
   require_once('includes/Filter.php');
   $fid = validInt($_REQUEST['fid']);
-  if (!$fid) {
-    echo '<div class="error">No filter id specified.</div>';
-  } else {
-    $filter = new ZM\Filter($_REQUEST['fid']);
+
+  $filter = null;
+  if ($fid) {
+    $filter = new ZM\Filter($fid);
     if (!$filter->Id()) {
       echo '<div class="error">Filter not found for id '.$_REQUEST['fid'].'</div>';
     }
+  } else {
+   $filter = new ZM\Filter();
+   if ( isset($_REQUEST['filter'])) {
+     $filter->set($_REQUEST['filter']);
+   } else {
+     echo '<div class="error">No filter id or contents specified.</div>';
+   }
   }
 ?>
        <form name="contentForm" id="filterdebugForm" method="post" action="?">
diff --git a/web/skins/classic/views/report_event_audit.php b/web/skins/classic/views/report_event_audit.php
index be53c87b0..fa2a07004 100644
--- a/web/skins/classic/views/report_event_audit.php
+++ b/web/skins/classic/views/report_event_audit.php
@@ -42,7 +42,7 @@ $filter = new ZM\Filter();
 $filter->addTerm(array('attr'=>'StartDateTime', 'op'=>'>=', 'val'=>$minTime, 'obr'=>'1'));
 $filter->addTerm(array('attr'=>'StartDateTime', 'op'=>'<=', 'val'=>$maxTime, 'cnj'=>'and', 'cbr'=>'1'));
 if ( count($selected_monitor_ids) ) {
-  $filter->addTerm(array('attr'=>'MonitorId', 'op'=>'IN', 'val'=>implode(',', $selected_monitor_ids), 'cnj'=>'and'));
+  $filter->addTerm(array('attr'=>'MonitorId', 'op'=>'=[]', 'val'=>implode(',', $selected_monitor_ids), 'cnj'=>'and'));
 } else if ( ( $group_id != 0 || isset($_SESSION['ServerId']) || isset($_SESSION['StorageId']) || isset($_SESSION['Status']) ) ) {
 # this should be redundant
   for ( $i=0; $i < count($displayMonitors); $i++ ) {
@@ -164,11 +164,11 @@ for ( $monitor_i = 0; $monitor_i < count($displayMonitors); $monitor_i += 1 ) {
 
   if ( count($FileMissing) ) {
     $FileMissing_filter = new ZM\Filter();
-    $FileMissing_filter->addTerm(array('attr'=>'Id', 'op'=>'IN', 'val'=>implode(',', array_map(function($Event){return $Event->Id();}, $FileMissing))));
+    $FileMissing_filter->addTerm(array('attr'=>'Id', 'op'=>'=[]', 'val'=>implode(',', array_map(function($Event){return $Event->Id();}, $FileMissing))));
   }
   if ( count($ZeroSize) ) {
     $ZeroSize_filter = new ZM\Filter();
-    $ZeroSize_filter->addTerm(array('attr'=>'Id', 'op'=>'IN', 'val'=>implode(',', array_map(function($Event){return $Event->Id();}, $ZeroSize))));
+    $ZeroSize_filter->addTerm(array('attr'=>'Id', 'op'=>'=[]', 'val'=>implode(',', array_map(function($Event){return $Event->Id();}, $ZeroSize))));
   }
 ?>
           <tr id="<?php echo 'monitor_id-'.$monitor['Id'] ?>" title="<?php echo $monitor['Id'] ?>">