diff --git a/Linphone/core/chat/ChatCore.cpp b/Linphone/core/chat/ChatCore.cpp
index c39303a5f..27e3ef7b4 100644
--- a/Linphone/core/chat/ChatCore.cpp
+++ b/Linphone/core/chat/ChatCore.cpp
@@ -223,10 +223,24 @@ void ChatCore::setSelf(const QSharedPointer<ChatCore> &me) {
 	mChatModelConnection->makeConnectToModel(
 	    &ChatModel::chatMessagesReceived, [this](const std::shared_ptr<linphone::ChatRoom> &chatRoom,
 	                                             const std::list<std::shared_ptr<linphone::EventLog>> &eventsLog) {
+		    if (!mChatModel) {
+			    lWarning() << log().arg("Chat model is null !");
+			    return;
+		    } else if (!mChatModelConnection) {
+			    lWarning() << log().arg("Connection between Core and Model is null !");
+			    return;
+		    }
 		    if (mChatModel->getMonitor() != chatRoom) return;
 		    lDebug() << log().arg("CHAT MESSAGE RECEIVED IN CHATROOM") << this << mChatModel->getTitle();
+		    lInfo() << log().arg("Chat message received in chatroom") << this << mChatModel->getTitle();
+		    lInfo() << log().arg("Safe Connection =") << mChatModelConnection.get();
+		    lInfo() << log().arg("this =") << this;
 		    QList<QSharedPointer<EventLogCore>> list;
 		    for (auto &e : eventsLog) {
+			    if (!e) {
+				    lWarning() << log().arg("Event log is null, continue");
+				    continue;
+			    }
 			    auto event = EventLogCore::create(e, chatRoom);
 			    list.push_back(event);
 		    }
diff --git a/Linphone/core/search/MagicSearchList.cpp b/Linphone/core/search/MagicSearchList.cpp
index 922e6d7ba..c5ac51cc1 100644
--- a/Linphone/core/search/MagicSearchList.cpp
+++ b/Linphone/core/search/MagicSearchList.cpp
@@ -92,6 +92,9 @@ void MagicSearchList::setSelf(const QSharedPointer<MagicSearchList> &me) {
 			mModelConnection->makeConnectToModel(
 			    &MagicSearchModel::searchResultsReceived,
 			    [this](const std::list<std::shared_ptr<linphone::SearchResult>> &results) {
+				    lInfo() << log().arg("Search result received");
+				    lInfo() << log().arg("this =") << this;
+				    lInfo() << log().arg("Safe Connection =") << mModelConnection.get();
 				    auto *contacts = new QList<QSharedPointer<FriendCore>>();
 				    auto ldapContacts = ToolModel::getLdapFriendList();
 				    auto core = CoreModel::getInstance()->getCore();
diff --git a/Linphone/data/languages/de.ts b/Linphone/data/languages/de.ts
index 62fe7120b..ddcdc28ae 100644
--- a/Linphone/data/languages/de.ts
+++ b/Linphone/data/languages/de.ts
@@ -4362,7 +4362,7 @@ Ablauf: %1</translation>
 <context>
     <name>MagicSearchList</name>
     <message>
-        <location filename="../../core/search/MagicSearchList.cpp" line="143"/>
+        <location filename="../../core/search/MagicSearchList.cpp" line="145"/>
         <source>device_id</source>
         <translation>Telefon</translation>
     </message>
diff --git a/Linphone/data/languages/en.ts b/Linphone/data/languages/en.ts
index 1c28060db..0868d4d70 100644
--- a/Linphone/data/languages/en.ts
+++ b/Linphone/data/languages/en.ts
@@ -4260,7 +4260,7 @@ Expiration : %1</translation>
 <context>
     <name>MagicSearchList</name>
     <message>
-        <location filename="../../core/search/MagicSearchList.cpp" line="143"/>
+        <location filename="../../core/search/MagicSearchList.cpp" line="145"/>
         <source>device_id</source>
         <translation>Phone</translation>
     </message>
diff --git a/Linphone/data/languages/fr.ts b/Linphone/data/languages/fr.ts
index ddc286115..bb3004257 100644
--- a/Linphone/data/languages/fr.ts
+++ b/Linphone/data/languages/fr.ts
@@ -4235,7 +4235,7 @@ Expiration : %1</translation>
 <context>
     <name>MagicSearchList</name>
     <message>
-        <location filename="../../core/search/MagicSearchList.cpp" line="143"/>
+        <location filename="../../core/search/MagicSearchList.cpp" line="145"/>
         <source>device_id</source>
         <translation>Téléphone</translation>
     </message>
diff --git a/Linphone/model/chat/message/ChatMessageModel.cpp b/Linphone/model/chat/message/ChatMessageModel.cpp
index 733768f2a..14647f327 100644
--- a/Linphone/model/chat/message/ChatMessageModel.cpp
+++ b/Linphone/model/chat/message/ChatMessageModel.cpp
@@ -37,6 +37,7 @@ ChatMessageModel::ChatMessageModel(const std::shared_ptr<linphone::ChatMessage>
 	mEphemeralTimer.setInterval(60);
 	mEphemeralTimer.setSingleShot(false);
 	if (mMonitor->getEphemeralExpireTime() != 0) mEphemeralTimer.start();
+	mChatRoom = mMonitor->getChatRoom();
 	connect(&mEphemeralTimer, &QTimer::timeout, this,
 	        [this] { emit ephemeralMessageTimeUpdated(mMonitor, mMonitor->getEphemeralExpireTime()); });
 	connect(this, &ChatMessageModel::ephemeralMessageTimerStarted, this, [this] { mEphemeralTimer.start(); });
@@ -47,7 +48,8 @@ ChatMessageModel::ChatMessageModel(const std::shared_ptr<linphone::ChatMessage>
 	// We need to force this signal sending because there is no callback to know when a message has been read
 	connect(CoreModel::getInstance().get(), &CoreModel::chatRoomRead, this,
 	        [this](const std::shared_ptr<linphone::Core> &core, const std::shared_ptr<linphone::ChatRoom> &chatRoom) {
-		        if (chatRoom == mMonitor->getChatRoom()) {
+		        if (!mMonitor || !mChatRoom.lock()) return;
+		        if (chatRoom == mChatRoom.lock()) {
 			        if (mMonitor->isRead()) {
 				        emit messageRead(mMonitor);
 			        }