diff --git a/libretroshare/src/gxs/rsgenexchange.cc b/libretroshare/src/gxs/rsgenexchange.cc
index 543b50f05..2d77e6da7 100644
--- a/libretroshare/src/gxs/rsgenexchange.cc
+++ b/libretroshare/src/gxs/rsgenexchange.cc
@@ -61,7 +61,7 @@ static const uint32_t INDEX_AUTHEN_ADMIN        = 0x00000040; // admin key
 
 #define GXS_MASK "GXS_MASK_HACK"
 
-//#define GEN_EXCH_DEBUG	1
+#define GEN_EXCH_DEBUG	1
 
 static const uint32_t MSG_CLEANUP_PERIOD     = 60*59; // 59 minutes
 static const uint32_t INTEGRITY_CHECK_PERIOD = 60*31; // 31 minutes
diff --git a/libretroshare/src/gxs/rsgxsnettunnel.cc b/libretroshare/src/gxs/rsgxsnettunnel.cc
index eabf21e7e..968ab0b6f 100644
--- a/libretroshare/src/gxs/rsgxsnettunnel.cc
+++ b/libretroshare/src/gxs/rsgxsnettunnel.cc
@@ -167,7 +167,12 @@ public:
 class RsGxsNetTunnelTurtleSearchGroupDataItem: public RsGxsNetTunnelItem
 {
 public:
-    explicit RsGxsNetTunnelTurtleSearchGroupDataItem(): RsGxsNetTunnelItem(RS_PKT_SUBTYPE_GXS_NET_TUNNEL_TURTLE_SEARCH_GROUP_DATA) {}
+    explicit RsGxsNetTunnelTurtleSearchGroupDataItem()
+        : RsGxsNetTunnelItem(RS_PKT_SUBTYPE_GXS_NET_TUNNEL_TURTLE_SEARCH_GROUP_DATA),
+          encrypted_group_data(NULL),
+          encrypted_group_data_len(0)
+    {}
+
     virtual ~RsGxsNetTunnelTurtleSearchGroupDataItem() {}
 
     uint16_t service ;
diff --git a/libretroshare/src/services/p3gxschannels.cc b/libretroshare/src/services/p3gxschannels.cc
index bdb1f9981..ab5990bae 100644
--- a/libretroshare/src/services/p3gxschannels.cc
+++ b/libretroshare/src/services/p3gxschannels.cc
@@ -237,11 +237,10 @@ RsGenExchange::ServiceCreate_Return p3GxsChannels::service_CreateGroup(RsGxsGrpI
 
 void p3GxsChannels::notifyChanges(std::vector<RsGxsNotify *> &changes)
 {
-#ifdef GXSCHANNELS_DEBUG
-	std::cerr << "p3GxsChannels::notifyChanges() : " << changes.size() << "changes to notify" << std::endl;
+#ifdef GXSCHANNEL_DEBUG
+    RsDbg() << " Processing " << changes.size() << " channel changes..." << std::endl;
 #endif
-
-	/* iterate through and grab any new messages */
+    /* iterate through and grab any new messages */
 	std::set<RsGxsGroupId> unprocessedGroups;
 
 	std::vector<RsGxsNotify *>::iterator it;
@@ -295,6 +294,10 @@ void p3GxsChannels::notifyChanges(std::vector<RsGxsNotify *> &changes)
 
 		if (grpChange && rsEvents)
 		{
+#ifdef GXSCHANNEL_DEBUG
+            RsDbg() << " Grp Change Event or type " << grpChange->getType() << ":" << std::endl;
+#endif
+
 			switch (grpChange->getType())
 			{
 			case RsGxsNotify::TYPE_PROCESSED:	// happens when the group is subscribed
@@ -322,18 +325,27 @@ void p3GxsChannels::notifyChanges(std::vector<RsGxsNotify *> &changes)
 
 				RS_STACK_MUTEX(mKnownChannelsMutex);
 
-				if(mKnownChannels.find(grpChange->mGroupId) == mKnownChannels.end())
+#ifdef GXSCHANNEL_DEBUG
+                RsDbg() << "    Type = Published/New " << std::endl;
+#endif
+                if(mKnownChannels.find(grpChange->mGroupId) == mKnownChannels.end())
 				{
-					mKnownChannels.insert(std::make_pair(grpChange->mGroupId,time(NULL))) ;
+#ifdef GXSCHANNEL_DEBUG
+                    RsDbg() << "    Status: unknown. Sending notification event." << std::endl;
+#endif
+
+                    mKnownChannels.insert(std::make_pair(grpChange->mGroupId,time(NULL))) ;
 					IndicateConfigChanged();
 
 					auto ev = std::make_shared<RsGxsChannelEvent>();
 					ev->mChannelGroupId = grpChange->mGroupId;
 					ev->mChannelEventCode = RsChannelEventCode::NEW_CHANNEL;
 					rsEvents->postEvent(ev);
-				}
+                }
+#ifdef GXSCHANNEL_DEBUG
 				else
-					std::cerr << "(II) Not notifying already known channel " << grpChange->mGroupId << std::endl;
+                    RsDbg() << "    Not notifying already known channel " << grpChange->mGroupId << std::endl;
+#endif
 			}
 				break;
 
diff --git a/retroshare-gui/src/gui/gxs/GxsGroupFrameDialog.cpp b/retroshare-gui/src/gui/gxs/GxsGroupFrameDialog.cpp
index 1021a3937..9cc924a33 100644
--- a/retroshare-gui/src/gui/gxs/GxsGroupFrameDialog.cpp
+++ b/retroshare-gui/src/gui/gxs/GxsGroupFrameDialog.cpp
@@ -312,6 +312,12 @@ void GxsGroupFrameDialog::updateSearchResults(const TurtleRequestId& sid)
 
 	auto it2 = mSearchGroupsItems.find(sid);
 
+    if(it2 == mSearchGroupsItems.end())
+    {
+        std::cerr << "(EE) received a channel group turtle search result with ID " << sid << " but no item is known for this search" << std::endl;
+        return;
+    }
+
 	QList<GroupItemInfo> group_items ;
 
 	for(auto it3(group_infos.begin());it3!=group_infos.end();++it3)