Added more synchronization at death + added listener for teleport and window confirmation to remove warning

src/main/java/net/minestom/server/entity/Entity.java

@@ -453,12 +453,12 @@ public abstract class Entity implements Viewable, EventHandler, DataContainer {
 
             ticks++;
             callEvent(EntityTickEvent.class, tickEvent); // reuse tickEvent to avoid recreating it each tick
+        }
 
-            // Scheduled synchronization
-            if (time - lastSynchronizationTime >= synchronizationDelay) {
-                lastSynchronizationTime = time;
-                sendSynchronization();
-            }
+        // Scheduled synchronization
+        if (time - lastSynchronizationTime >= synchronizationDelay) {
+            lastSynchronizationTime = time;
+            sendSynchronization();
         }
 
         if (shouldRemove()) {

src/main/java/net/minestom/server/entity/Player.java

@@ -1051,9 +1051,12 @@ public class Player extends LivingEntity {
         sendPacketToViewers(spawnPlayerPacket);
 
         // Update for viewers
+        sendPacketToViewersAndSelf(getVelocityPacket());
         sendPacketToViewersAndSelf(getMetadataPacket());
         playerConnection.sendPacket(getPropertiesPacket());
         syncEquipments();
+
+        askSynchronization();
     }
 
     protected void refreshHealth() {

src/main/java/net/minestom/server/listener/TeleportListener.java

@@ -0,0 +1,12 @@
+package net.minestom.server.listener;
+
+import net.minestom.server.entity.Player;
+import net.minestom.server.network.packet.client.play.ClientTeleportConfirmPacket;
+
+public class TeleportListener {
+
+    public static void listener(ClientTeleportConfirmPacket packet, Player player) {
+        // Empty
+    }
+
+}

src/main/java/net/minestom/server/listener/WindowListener.java

@@ -8,6 +8,7 @@ import net.minestom.server.inventory.PlayerInventory;
 import net.minestom.server.item.ItemStack;
 import net.minestom.server.network.packet.client.play.ClientClickWindowPacket;
 import net.minestom.server.network.packet.client.play.ClientCloseWindow;
+import net.minestom.server.network.packet.client.play.ClientWindowConfirmationPacket;
 import net.minestom.server.network.packet.server.play.SetSlotPacket;
 import net.minestom.server.network.packet.server.play.WindowConfirmationPacket;
 
@@ -122,4 +123,8 @@ public class WindowListener {
             player.openInventory(newInventory);
     }
 
+    public static void windowConfirmationListener(ClientWindowConfirmationPacket packet, Player player) {
+        // Empty
+    }
+
 }

src/main/java/net/minestom/server/listener/manager/PacketListenerManager.java

@@ -21,6 +21,7 @@ public class PacketListenerManager {
         addListener(ClientChatMessagePacket.class, ChatMessageListener::listener);
         addListener(ClientClickWindowPacket.class, WindowListener::clickWindowListener);
         addListener(ClientCloseWindow.class, WindowListener::closeWindowListener);
+        addListener(ClientWindowConfirmationPacket.class, WindowListener::windowConfirmationListener);
         addListener(ClientEntityActionPacket.class, EntityActionListener::listener);
         addListener(ClientHeldItemChangePacket.class, PlayerHeldListener::heldListener);
         addListener(ClientPlayerBlockPlacementPacket.class, BlockPlacementListener::listener);
@@ -42,6 +43,7 @@ public class PacketListenerManager {
         addListener(ClientTabCompletePacket.class, TabCompleteListener::listener);
         addListener(ClientPluginMessagePacket.class, PluginMessageListener::listener);
         addListener(ClientPlayerAbilitiesPacket.class, AbilitiesListener::listener);
+        addListener(ClientTeleportConfirmPacket.class, TeleportListener::listener);
     }
 
     public <T extends ClientPlayPacket> void process(T packet, Player player) {