diff --git a/configure.ac b/configure.ac
index adbc4a7..771d26c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@ dnl when going to/from release please set the nano (fourth number) right !
 dnl releases only do Wall, git and prerelease does Werror too
 dnl
 AC_INIT([GstShark],
-        [0.8.0.1],
+        [0.8.1.1],
 	[https://github.com/RidgeRun/gst-shark],
 	[gst-shark],
 	[https://github.com/RidgeRun/gst-shark])
diff --git a/meson.build b/meson.build
index 3d07a56..d4fd83f 100644
--- a/meson.build
+++ b/meson.build
@@ -8,7 +8,7 @@
 #           Roberto Gutierrez <roberto.gutierrez@ridgerun.com>
 
 project('gst-shark', 'c',
-  version : '0.8.0',
+  version : '0.8.1',
   meson_version : '>= 0.58',)
 
 # Project version
diff --git a/plugins/tracers/gstbuffer.c b/plugins/tracers/gstbuffer.c
index fa11f14..93bb408 100644
--- a/plugins/tracers/gstbuffer.c
+++ b/plugins/tracers/gstbuffer.c
@@ -148,8 +148,6 @@ gst_buffer_buffer_list_pre (GObject * self, GstClockTime ts, GstPad * pad,
 static void
 gst_buffer_tracer_class_init (GstBufferTracerClass * klass)
 {
-  gchar *metadata_event;
-
   tr_buffer = gst_tracer_record_new ("buffer.class",
       "pad", GST_TYPE_STRUCTURE, gst_structure_new ("value",
           "type", G_TYPE_GTYPE, G_TYPE_STRING,
@@ -178,16 +176,13 @@ gst_buffer_tracer_class_init (GstBufferTracerClass * klass)
       GST_TYPE_STRUCTURE, gst_structure_new ("value", "type", G_TYPE_GTYPE,
           G_TYPE_UINT, "description", G_TYPE_STRING, "Ref Count", "min",
           G_TYPE_UINT, 0, "max", G_TYPE_UINT, G_MAXUINT32, NULL), NULL);
-
-  metadata_event = g_strdup_printf (buffer_metadata_event, BUFFER_EVENT_ID, 0);
-  add_metadata_event_struct (metadata_event);
-  g_free (metadata_event);
 }
 
 static void
 gst_buffer_tracer_init (GstBufferTracer * self)
 {
   GstSharkTracer *tracer = GST_SHARK_TRACER (self);
+  gchar *metadata_event = NULL;
 
   gst_shark_tracer_register_hook (tracer, "pad-push-pre",
       G_CALLBACK (gst_buffer_buffer_pre));
@@ -197,4 +192,8 @@ gst_buffer_tracer_init (GstBufferTracer * self)
 
   gst_shark_tracer_register_hook (tracer, "pad-pull-range-post",
       G_CALLBACK (gst_buffer_range_post));
+
+  metadata_event = g_strdup_printf (buffer_metadata_event, BUFFER_EVENT_ID, 0);
+  add_metadata_event_struct (metadata_event);
+  g_free (metadata_event);
 }
diff --git a/plugins/tracers/gstinterlatency.c b/plugins/tracers/gstinterlatency.c
index b8475af..24ea323 100644
--- a/plugins/tracers/gstinterlatency.c
+++ b/plugins/tracers/gstinterlatency.c
@@ -271,7 +271,6 @@ static void
 gst_interlatency_tracer_class_init (GstInterLatencyTracerClass * klass)
 {
   GObjectClass *oclass;
-  gchar *metadata_event;
 
   oclass = G_OBJECT_CLASS (klass);
 
@@ -312,17 +311,13 @@ gst_interlatency_tracer_class_init (GstInterLatencyTracerClass * klass)
   /* *INDENT-ON* */
 
   oclass->dispose = gst_interlatency_tracer_dispose;
-
-  metadata_event =
-      g_strdup_printf (interlatency_metadata_event, INTERLATENCY_EVENT_ID, 0);
-  add_metadata_event_struct (metadata_event);
-  g_free (metadata_event);
 }
 
 static void
 gst_interlatency_tracer_init (GstInterLatencyTracer * self)
 {
   GstTracer *tracer = GST_TRACER (self);
+  gchar *metadata_event = NULL;
 
   /* In push mode, pre/post will be called before/after the peer chain
    * function has been called. For this reason, we only use -pre to avoid
@@ -344,6 +339,11 @@ gst_interlatency_tracer_init (GstInterLatencyTracer * self)
       G_CALLBACK (do_pull_range_post));
   gst_tracing_register_hook (tracer, "pad-push-event-pre",
       G_CALLBACK (do_push_event_pre));
+
+  metadata_event =
+      g_strdup_printf (interlatency_metadata_event, INTERLATENCY_EVENT_ID, 0);
+  add_metadata_event_struct (metadata_event);
+  g_free (metadata_event);
 }
 
 static void
diff --git a/plugins/tracers/gstproctime.c b/plugins/tracers/gstproctime.c
index 643e0fa..0e0bc7a 100644
--- a/plugins/tracers/gstproctime.c
+++ b/plugins/tracers/gstproctime.c
@@ -135,7 +135,7 @@ static void
 gst_proc_time_tracer_class_init (GstProcTimeTracerClass * klass)
 {
   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-  gchar *metadata_event;
+
 
   gobject_class->finalize = gst_proc_time_tracer_finalize;
 
@@ -147,11 +147,6 @@ gst_proc_time_tracer_class_init (GstProcTimeTracerClass * klass)
       gst_structure_new ("scope", "type", G_TYPE_GTYPE, G_TYPE_STRING,
           "related-to", GST_TYPE_TRACER_VALUE_SCOPE,
           GST_TRACER_VALUE_SCOPE_PROCESS, NULL), NULL);
-
-  metadata_event =
-      g_strdup_printf (proc_time_metadata_event, PROCTIME_EVENT_ID, 0);
-  add_metadata_event_struct (metadata_event);
-  g_free (metadata_event);
 }
 
 
@@ -159,7 +154,7 @@ static void
 gst_proc_time_tracer_init (GstProcTimeTracer * self)
 {
   GstTracer *tracer = GST_TRACER (self);
-
+  gchar *metadata_event = NULL;
 
   self->proc_time = gst_proctime_new ();
 
@@ -168,4 +163,9 @@ gst_proc_time_tracer_init (GstProcTimeTracer * self)
 
   gst_tracing_register_hook (tracer, "element-new",
       G_CALLBACK (do_element_new));
+
+  metadata_event =
+      g_strdup_printf (proc_time_metadata_event, PROCTIME_EVENT_ID, 0);
+  add_metadata_event_struct (metadata_event);
+  g_free (metadata_event);
 }
diff --git a/plugins/tracers/gstqueuelevel.c b/plugins/tracers/gstqueuelevel.c
index 38de80d..b1f32c3 100644
--- a/plugins/tracers/gstqueuelevel.c
+++ b/plugins/tracers/gstqueuelevel.c
@@ -170,8 +170,6 @@ is_queue (GstElement * element)
 static void
 gst_queue_level_tracer_class_init (GstQueueLevelTracerClass * klass)
 {
-  gchar *metadata_event;
-
   tr_qlevel = gst_tracer_record_new ("queuelevel.class", "queue",
       GST_TYPE_STRUCTURE, gst_structure_new ("scope",
           "type", G_TYPE_GTYPE, G_TYPE_STRING,
@@ -201,17 +199,13 @@ gst_queue_level_tracer_class_init (GstQueueLevelTracerClass * klass)
           "type", G_TYPE_GTYPE, G_TYPE_STRING,
           "related-to", GST_TYPE_TRACER_VALUE_SCOPE,
           GST_TRACER_VALUE_SCOPE_ELEMENT, NULL), NULL);
-
-  metadata_event =
-      g_strdup_printf (queue_level_metadata_event, QUEUE_LEVEL_EVENT_ID, 0);
-  add_metadata_event_struct (metadata_event);
-  g_free (metadata_event);
 }
 
 static void
 gst_queue_level_tracer_init (GstQueueLevelTracer * self)
 {
   GstSharkTracer *tracer = GST_SHARK_TRACER (self);
+  gchar *metadata_event = NULL;
 
   gst_shark_tracer_register_hook (tracer, "pad-push-pre",
       G_CALLBACK (do_queue_level));
@@ -221,4 +215,9 @@ gst_queue_level_tracer_init (GstQueueLevelTracer * self)
 
   gst_shark_tracer_register_hook (tracer, "pad-pull-range-pre",
       G_CALLBACK (do_queue_level));
+
+  metadata_event =
+      g_strdup_printf (queue_level_metadata_event, QUEUE_LEVEL_EVENT_ID, 0);
+  add_metadata_event_struct (metadata_event);
+  g_free (metadata_event);
 }
diff --git a/plugins/tracers/gstscheduletime.c b/plugins/tracers/gstscheduletime.c
index 327217b..d15e4a4 100644
--- a/plugins/tracers/gstscheduletime.c
+++ b/plugins/tracers/gstscheduletime.c
@@ -155,7 +155,6 @@ static void
 gst_scheduletime_tracer_class_init (GstScheduletimeTracerClass * klass)
 {
   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-  gchar *metadata_event;
 
   gobject_class->finalize = gst_scheduletime_tracer_finalize;
 
@@ -168,17 +167,13 @@ gst_scheduletime_tracer_class_init (GstScheduletimeTracerClass * klass)
           "type", G_TYPE_GTYPE, G_TYPE_STRING,
           "related-to", GST_TYPE_TRACER_VALUE_SCOPE,
           GST_TRACER_VALUE_SCOPE_PROCESS, NULL), NULL);
-
-  metadata_event =
-      g_strdup_printf (scheduling_metadata_event, SCHED_TIME_EVENT_ID, 0);
-  add_metadata_event_struct (metadata_event);
-  g_free (metadata_event);
 }
 
 static void
 gst_scheduletime_tracer_init (GstScheduletimeTracer * self)
 {
   GstSharkTracer *tracer = GST_SHARK_TRACER (self);
+  gchar *metadata_event = NULL;
 
   self->schedule_pads =
       g_hash_table_new_full (g_direct_hash, g_direct_equal, key_destroy,
@@ -192,4 +187,9 @@ gst_scheduletime_tracer_init (GstScheduletimeTracer * self)
 
   gst_shark_tracer_register_hook (tracer, "pad-pull-range-pre",
       G_CALLBACK (sched_time_compute));
+
+  metadata_event =
+      g_strdup_printf (scheduling_metadata_event, SCHED_TIME_EVENT_ID, 0);
+  add_metadata_event_struct (metadata_event);
+  g_free (metadata_event);
 }
diff --git a/plugins/tracers/gstsharktracer.c b/plugins/tracers/gstsharktracer.c
index ba21d60..2a87980 100644
--- a/plugins/tracers/gstsharktracer.c
+++ b/plugins/tracers/gstsharktracer.c
@@ -137,12 +137,18 @@ static void
 gst_shark_tracer_init (GstSharkTracer * self)
 {
   GstSharkTracerPrivate *priv = GST_SHARK_TRACER_PRIVATE (self);
+  gint prev_count = 0;
 
   priv->params = g_hash_table_new (g_str_hash, g_str_equal);
   priv->hooks = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
   priv->myhooks = g_hash_table_new (g_str_hash, g_str_equal);
 
   gst_shark_tracer_fill_hooks (priv);
+
+  prev_count = g_atomic_int_add (&g_shark_tracer_refcount, 1);
+  if (prev_count == 0) {
+    gst_ctf_init ();
+  }
 }
 
 static void
@@ -223,15 +229,10 @@ gst_shark_tracer_fill_hooks (GstSharkTracerPrivate * priv)
 static void
 gst_shark_tracer_constructed (GObject * object)
 {
-  gint prev_count;
+
   GstSharkTracer *self = GST_SHARK_TRACER (object);
 
   gst_shark_tracer_save_params (self);
-
-  prev_count = g_atomic_int_add (&g_shark_tracer_refcount, 1);
-  if (prev_count == 0) {
-    gst_ctf_init ();
-  }
 }
 
 static void