diff --git a/application/src/main/java/org/thingsboard/server/service/subscription/DefaultSubscriptionManagerService.java b/application/src/main/java/org/thingsboard/server/service/subscription/DefaultSubscriptionManagerService.java
index 018d80f013..6e5ca1669f 100644
--- a/application/src/main/java/org/thingsboard/server/service/subscription/DefaultSubscriptionManagerService.java
+++ b/application/src/main/java/org/thingsboard/server/service/subscription/DefaultSubscriptionManagerService.java
@@ -492,12 +492,14 @@ public class DefaultSubscriptionManagerService extends TbApplicationEventListene
             boolean hasData = false;
             for (Object v : value) {
                 Object[] array = (Object[]) v;
-                dataBuilder.addTs((long) array[0]);
+                TbSubscriptionUpdateTsValue.Builder tsValueBuilder = TbSubscriptionUpdateTsValue.newBuilder();
+                tsValueBuilder.setTs((long) array[0]);
                 String strVal = (String) array[1];
                 if (strVal != null) {
                     hasData = true;
-                    dataBuilder.addValue(strVal);
+                    tsValueBuilder.setValue(strVal);
                 }
+                dataBuilder.addTsValue(tsValueBuilder.build());
             }
             if (!ignoreEmptyUpdates || hasData) {
                 builder.addData(dataBuilder.build());
diff --git a/application/src/main/java/org/thingsboard/server/service/subscription/TbSubscriptionUtils.java b/application/src/main/java/org/thingsboard/server/service/subscription/TbSubscriptionUtils.java
index 978d7aaac3..25b67d3a06 100644
--- a/application/src/main/java/org/thingsboard/server/service/subscription/TbSubscriptionUtils.java
+++ b/application/src/main/java/org/thingsboard/server/service/subscription/TbSubscriptionUtils.java
@@ -42,6 +42,7 @@ import org.thingsboard.server.gen.transport.TransportProtos.TbSubscriptionCloseP
 import org.thingsboard.server.gen.transport.TransportProtos.TbSubscriptionKetStateProto;
 import org.thingsboard.server.gen.transport.TransportProtos.TbSubscriptionProto;
 import org.thingsboard.server.gen.transport.TransportProtos.TbSubscriptionUpdateProto;
+import org.thingsboard.server.gen.transport.TransportProtos.TbSubscriptionUpdateTsValue;
 import org.thingsboard.server.gen.transport.TransportProtos.TbTimeSeriesSubscriptionProto;
 import org.thingsboard.server.gen.transport.TransportProtos.TbTimeSeriesUpdateProto;
 import org.thingsboard.server.gen.transport.TransportProtos.ToCoreMsg;
@@ -171,10 +172,11 @@ public class TbSubscriptionUtils {
             Map<String, List<Object>> data = new TreeMap<>();
             proto.getDataList().forEach(v -> {
                 List<Object> values = data.computeIfAbsent(v.getKey(), k -> new ArrayList<>());
-                for (int i = 0; i < v.getTsCount(); i++) {
+                for (int i = 0; i < v.getTsValueCount(); i++) {
                     Object[] value = new Object[2];
-                    value[0] = v.getTs(i);
-                    value[1] = v.getValue(i);
+                    TbSubscriptionUpdateTsValue tsValue = v.getTsValue(i);
+                    value[0] = tsValue.getTs();
+                    value[1] = tsValue.hasValue() ? tsValue.getValue() : null;
                     values.add(value);
                 }
             });
diff --git a/common/cluster-api/src/main/proto/queue.proto b/common/cluster-api/src/main/proto/queue.proto
index 5b220974ef..dca92c1c7a 100644
--- a/common/cluster-api/src/main/proto/queue.proto
+++ b/common/cluster-api/src/main/proto/queue.proto
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 syntax = "proto3";
+
 package transport;
 
 option java_package = "org.thingsboard.server.gen.transport";
@@ -581,8 +582,12 @@ message TbSubscriptionKetStateProto {
 
 message TbSubscriptionUpdateValueListProto {
   string key = 1;
-  repeated int64 ts = 2;
-  repeated string value = 3;
+  repeated TbSubscriptionUpdateTsValue tsValue = 2;
+}
+
+message TbSubscriptionUpdateTsValue {
+   int64 ts = 1;
+   optional string value = 2;
 }
 
 /**
diff --git a/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/DefaultLwM2mTransportService.java b/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/DefaultLwM2mTransportService.java
index 15aeac095c..147e20c02b 100644
--- a/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/DefaultLwM2mTransportService.java
+++ b/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/DefaultLwM2mTransportService.java
@@ -17,7 +17,6 @@ package org.thingsboard.server.transport.lwm2m.server;
 
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.eclipse.californium.elements.util.SslContextUtil;
 import org.eclipse.californium.scandium.config.DtlsConnectorConfig;
 import org.eclipse.californium.scandium.dtls.cipher.CipherSuite;
 import org.eclipse.leshan.core.node.codec.DefaultLwM2mNodeDecoder;
@@ -29,6 +28,7 @@ import org.springframework.stereotype.Component;
 import org.thingsboard.server.cache.ota.OtaPackageDataCache;
 import org.thingsboard.server.common.data.DataConstants;
 import org.thingsboard.server.common.transport.config.ssl.SslCredentials;
+import org.thingsboard.server.queue.util.AfterStartUp;
 import org.thingsboard.server.queue.util.TbLwM2mTransportComponent;
 import org.thingsboard.server.transport.lwm2m.config.LwM2MTransportServerConfig;
 import org.thingsboard.server.transport.lwm2m.secure.TbLwM2MAuthorizer;
@@ -37,10 +37,7 @@ import org.thingsboard.server.transport.lwm2m.server.store.TbSecurityStore;
 import org.thingsboard.server.transport.lwm2m.server.uplink.DefaultLwM2MUplinkMsgHandler;
 import org.thingsboard.server.transport.lwm2m.utils.LwM2mValueConverterImpl;
 
-import javax.annotation.PostConstruct;
 import javax.annotation.PreDestroy;
-import java.security.PrivateKey;
-import java.security.PublicKey;
 import java.security.cert.X509Certificate;
 
 import static org.eclipse.californium.scandium.dtls.cipher.CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256;
@@ -71,7 +68,7 @@ public class DefaultLwM2mTransportService implements LwM2MTransportService {
 
     private LeshanServer server;
 
-    @PostConstruct
+    @AfterStartUp
     public void init() {
         this.server = getLhServer();
         /*
diff --git a/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/client/LwM2mClientContextImpl.java b/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/client/LwM2mClientContextImpl.java
index da304821da..e2b05847f7 100644
--- a/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/client/LwM2mClientContextImpl.java
+++ b/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/client/LwM2mClientContextImpl.java
@@ -88,7 +88,7 @@ public class LwM2mClientContextImpl implements LwM2mClientContext {
     private final Map<String, LwM2mClient> lwM2mClientsByRegistrationId = new ConcurrentHashMap<>();
     private final Map<UUID, Lwm2mDeviceProfileTransportConfiguration> profiles = new ConcurrentHashMap<>();
 
-    @AfterStartUp
+    @AfterStartUp(order = Integer.MAX_VALUE - 1)
     public void init() {
         String nodeId = context.getNodeId();
         Set<LwM2mClient> fetchedClients = clientStore.getAll();
diff --git a/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/rpc/DefaultLwM2MRpcRequestHandler.java b/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/rpc/DefaultLwM2MRpcRequestHandler.java
index 161ca3d2f1..a728a0b6e0 100644
--- a/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/rpc/DefaultLwM2MRpcRequestHandler.java
+++ b/common/transport/lwm2m/src/main/java/org/thingsboard/server/transport/lwm2m/server/rpc/DefaultLwM2MRpcRequestHandler.java
@@ -87,6 +87,12 @@ public class DefaultLwM2MRpcRequestHandler implements LwM2MRpcRequestHandler {
                 return;
             }
             LwM2mClient client = clientContext.getClientBySessionInfo(sessionInfo);
+
+            if (client == null) {
+                log.warn("Missing client for session: [{}]", sessionInfo);
+                return;
+            }
+
             if (client.getRegistration() == null) {
                 this.sendErrorRpcResponse(sessionInfo, rpcRequest.getRequestId(), ResponseCode.INTERNAL_SERVER_ERROR, "Registration is empty");
                 return;