diff --git a/bukkit/src/main/java/net/william278/husksync/listener/BukkitEventListener.java b/bukkit/src/main/java/net/william278/husksync/listener/BukkitEventListener.java
index 94654d35..84b3d43b 100644
--- a/bukkit/src/main/java/net/william278/husksync/listener/BukkitEventListener.java
+++ b/bukkit/src/main/java/net/william278/husksync/listener/BukkitEventListener.java
@@ -17,6 +17,7 @@ import org.bukkit.event.block.BlockPlaceEvent;
 import org.bukkit.event.entity.EntityDamageEvent;
 import org.bukkit.event.entity.EntityPickupItemEvent;
 import org.bukkit.event.entity.PlayerDeathEvent;
+import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryOpenEvent;
 import org.bukkit.event.player.PlayerDropItemEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
@@ -55,7 +56,7 @@ public class BukkitEventListener extends EventListener implements BukkitJoinEven
         final OnlineUser user = BukkitPlayer.adapt(event.getEntity());
 
         // If the player is locked or the plugin disabling, clear their drops
-        if (cancelPlayerEvent(user)) {
+        if (cancelPlayerEvent(user.uuid)) {
             event.getDrops().clear();
             return;
         }
@@ -89,43 +90,47 @@ public class BukkitEventListener extends EventListener implements BukkitJoinEven
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onDropItem(@NotNull PlayerDropItemEvent event) {
-        event.setCancelled(cancelPlayerEvent(BukkitPlayer.adapt(event.getPlayer())));
+        event.setCancelled(cancelPlayerEvent(event.getPlayer().getUniqueId()));
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onPickupItem(@NotNull EntityPickupItemEvent event) {
         if (event.getEntity() instanceof Player player) {
-            event.setCancelled(cancelPlayerEvent(BukkitPlayer.adapt(player)));
+            event.setCancelled(cancelPlayerEvent(player.getUniqueId()));
         }
-
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onPlayerInteract(@NotNull PlayerInteractEvent event) {
-        event.setCancelled(cancelPlayerEvent(BukkitPlayer.adapt(event.getPlayer())));
+        event.setCancelled(cancelPlayerEvent(event.getPlayer().getUniqueId()));
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onBlockPlace(@NotNull BlockPlaceEvent event) {
-        event.setCancelled(cancelPlayerEvent(BukkitPlayer.adapt(event.getPlayer())));
+        event.setCancelled(cancelPlayerEvent(event.getPlayer().getUniqueId()));
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onBlockBreak(@NotNull BlockBreakEvent event) {
-        event.setCancelled(cancelPlayerEvent(BukkitPlayer.adapt(event.getPlayer())));
+        event.setCancelled(cancelPlayerEvent(event.getPlayer().getUniqueId()));
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onInventoryOpen(@NotNull InventoryOpenEvent event) {
         if (event.getPlayer() instanceof Player player) {
-            event.setCancelled(cancelPlayerEvent(BukkitPlayer.adapt(player)));
+            event.setCancelled(cancelPlayerEvent(player.getUniqueId()));
         }
     }
 
+    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
+    public void onInventoryClick(@NotNull InventoryClickEvent event) {
+        event.setCancelled(cancelPlayerEvent(event.getWhoClicked().getUniqueId()));
+    }
+
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onPlayerTakeDamage(@NotNull EntityDamageEvent event) {
         if (event.getEntity() instanceof Player player) {
-            event.setCancelled(cancelPlayerEvent(BukkitPlayer.adapt(player)));
+            event.setCancelled(cancelPlayerEvent(player.getUniqueId()));
         }
     }
 
diff --git a/common/src/main/java/net/william278/husksync/listener/EventListener.java b/common/src/main/java/net/william278/husksync/listener/EventListener.java
index 04334eeb..06c5ef9e 100644
--- a/common/src/main/java/net/william278/husksync/listener/EventListener.java
+++ b/common/src/main/java/net/william278/husksync/listener/EventListener.java
@@ -122,8 +122,8 @@ public abstract class EventListener {
     private void handleSynchronisationCompletion(@NotNull OnlineUser user, boolean succeeded) {
         if (succeeded) {
             plugin.getLocales().getLocale("synchronisation_complete").ifPresent(user::sendActionBar);
-            lockedPlayers.remove(user.uuid);
             plugin.getDatabase().ensureUser(user).join();
+            lockedPlayers.remove(user.uuid);
             plugin.getEventCannon().fireSyncCompleteEvent(user);
         } else {
             plugin.getLocales().getLocale("synchronisation_failed")
@@ -154,7 +154,8 @@ public abstract class EventListener {
                         optionalUserData -> optionalUserData.ifPresent(userData -> plugin.getRedisManager()
                                 .setUserData(user, userData).thenRun(() -> plugin.getDatabase()
                                         .setUserData(user, userData, DataSaveCause.DISCONNECT)))))
-                .thenRun(() -> lockedPlayers.remove(user.uuid)).exceptionally(throwable -> {
+                .thenRun(() -> lockedPlayers.remove(user.uuid))
+                .exceptionally(throwable -> {
                     plugin.getLoggingAdapter().log(Level.SEVERE,
                             "An exception occurred handling a player disconnection");
                     throwable.printStackTrace();
@@ -196,11 +197,11 @@ public abstract class EventListener {
     /**
      * Determine whether a player event should be cancelled
      *
-     * @param user {@link OnlineUser} performing the event
+     * @param userUuid The UUID of the user to check
      * @return Whether the event should be cancelled
      */
-    protected final boolean cancelPlayerEvent(@NotNull OnlineUser user) {
-        return disabling || lockedPlayers.contains(user.uuid);
+    protected final boolean cancelPlayerEvent(@NotNull UUID userUuid) {
+        return disabling || lockedPlayers.contains(userUuid);
     }
 
     /**