diff --git a/openlp/core/lib/db.py b/openlp/core/lib/db.py
index f97a74dc8..972d849a3 100644
--- a/openlp/core/lib/db.py
+++ b/openlp/core/lib/db.py
@@ -199,7 +199,7 @@ class Manager(object):
             Any parameters to order the returned objects by.  Defaults to None.
         """
         query = self.session.query(object_class)
-        if filter_clause:
+        if filter_clause is not None:
             query = query.filter(filter_clause)
         if order_by_ref is not None:
             return query.order_by(order_by_ref).all()
@@ -237,7 +237,7 @@ class Manager(object):
         """
         try:
             query = self.session.query(object_class)
-            if filter_clause:
+            if filter_clause is not None:
                 query = query.filter(filter_clause)
             query.delete(synchronize_session=False)
             self.session.commit()
diff --git a/openlp/core/lib/serviceitem.py b/openlp/core/lib/serviceitem.py
index 022acebcf..6ca9bd523 100644
--- a/openlp/core/lib/serviceitem.py
+++ b/openlp/core/lib/serviceitem.py
@@ -87,7 +87,7 @@ class ServiceItem(object):
         self.service_item_type = None
         self._raw_frames = []
         self._display_frames = []
-        self._uuid = unicode(uuid.uuid1())
+        self._uuid = 0
         self.notes = u''
         self.from_plugin = False
         self.capabilities = []
@@ -98,6 +98,9 @@ class ServiceItem(object):
         self.footer = None
         self.bg_frame = None
 
+    def _new_item(self):
+        self._uuid = unicode(uuid.uuid1())
+
     def add_capability(self, capability):
         """
         Add an ItemCapability to a ServiceItem
@@ -188,6 +191,7 @@ class ServiceItem(object):
         self.service_item_type = ServiceItemType.Image
         self._raw_frames.append(
             {u'title': title, u'image': image, u'path': path})
+        self._new_item()
 
     def add_from_text(self, title, raw_slide, verse_tag=None):
         """
@@ -203,6 +207,7 @@ class ServiceItem(object):
         title = title.split(u'\n')[0]
         self._raw_frames.append(
             {u'title': title, u'raw_slide': raw_slide, u'verseTag':verse_tag})
+        self._new_item()
 
     def add_from_command(self, path, file_name, image):
         """
@@ -220,6 +225,7 @@ class ServiceItem(object):
         self.service_item_type = ServiceItemType.Command
         self._raw_frames.append(
             {u'title': file_name, u'image': image, u'path': path})
+        self._new_item()
 
     def get_service_repr(self):
         """
diff --git a/openlp/plugins/songs/lib/mediaitem.py b/openlp/plugins/songs/lib/mediaitem.py
index ced7f584e..f90136601 100644
--- a/openlp/plugins/songs/lib/mediaitem.py
+++ b/openlp/plugins/songs/lib/mediaitem.py
@@ -370,6 +370,6 @@ class SongMediaItem(MediaManagerItem):
             translate('SongsPlugin.MediaItem', 'CCLI Licence: ') + ccli))
         service_item.raw_footer = raw_footer
         service_item.audit = [
-            song.title, author_audit, song.copyright, song.ccli_number
+            song.title, author_audit, song.copyright, unicode(song.ccli_number)
         ]
         return True
diff --git a/openlp/plugins/songusage/songusageplugin.py b/openlp/plugins/songusage/songusageplugin.py
index 0ec82d15f..c8dfd06fc 100644
--- a/openlp/plugins/songusage/songusageplugin.py
+++ b/openlp/plugins/songusage/songusageplugin.py
@@ -109,7 +109,7 @@ class SongUsagePlugin(Plugin):
         log.info(u'SongUsage Initialising')
         Plugin.initialise(self)
         QtCore.QObject.connect(Receiver.get_receiver(),
-            QtCore.SIGNAL(u'songs_live_started'),
+            QtCore.SIGNAL(u'slidecontroller_live_started'),
             self.onReceiveSongUsage)
         self.SongUsageActive = QtCore.QSettings().value(
             self.settingsSection + u'/active',
@@ -133,11 +133,11 @@ class SongUsagePlugin(Plugin):
         QtCore.QSettings().setValue(self.settingsSection + u'/active',
             QtCore.QVariant(self.SongUsageActive))
 
-    def onReceiveSongUsage(self, items):
+    def onReceiveSongUsage(self, item):
         """
-        SongUsage a live song from SlideController
+        Song Usage for live song from SlideController
         """
-        audit = items[0].audit
+        audit = item[0].audit
         if self.SongUsageActive and audit:
             song_usage_item = SongUsageItem()
             song_usage_item.usagedate = datetime.today()