add remove_npcs_from_playerlist_delay config option

api/src/main/java/de/oliver/fancynpcs/api/FancyNpcsConfig.java

@@ -21,6 +21,8 @@ public interface FancyNpcsConfig {
 
     int getVisibilityDistance();
 
+    int getRemoveNpcsFromPlayerlistDelay();
+
     List<String> getBlockedCommands();
 
     Map<String, Integer> getMaxNpcsPerPermission();

implementation_1_19_4/src/main/java/de/oliver/fancynpcs/v1_19_4/Npc_1_19_4.java

@@ -133,7 +133,7 @@ public void spawn(Player player) {
         FancyNpcsPlugin.get().getNpcThread().schedule(() -> {
             ClientboundPlayerInfoRemovePacket playerInfoRemovePacket = new ClientboundPlayerInfoRemovePacket(List.of(npc.getUUID()));
             serverPlayer.connection.send(playerInfoRemovePacket);
-        }, 2, TimeUnit.SECONDS);
+        }, FancyNpcsPlugin.get().getFancyNpcConfig().getRemoveNpcsFromPlayerlistDelay(), TimeUnit.MILLISECONDS);
 
         update(player);
     }

implementation_1_20_1/src/main/java/de/oliver/fancynpcs/v1_20_1/Npc_1_20_1.java

@@ -134,7 +134,7 @@ public void spawn(Player player) {
         FancyNpcsPlugin.get().getNpcThread().schedule(() -> {
             ClientboundPlayerInfoRemovePacket playerInfoRemovePacket = new ClientboundPlayerInfoRemovePacket(List.of(npc.getUUID()));
             serverPlayer.connection.send(playerInfoRemovePacket);
-        }, 2, TimeUnit.SECONDS);
+        }, FancyNpcsPlugin.get().getFancyNpcConfig().getRemoveNpcsFromPlayerlistDelay(), TimeUnit.MILLISECONDS);
 
         update(player);
     }

implementation_1_20_2/src/main/java/de/oliver/fancynpcs/v1_20_2/Npc_1_20_2.java

@@ -131,7 +131,7 @@ public void spawn(Player player) {
         FancyNpcsPlugin.get().getNpcThread().schedule(() -> {
             ClientboundPlayerInfoRemovePacket playerInfoRemovePacket = new ClientboundPlayerInfoRemovePacket(List.of(npc.getUUID()));
             serverPlayer.connection.send(playerInfoRemovePacket);
-        }, 2, TimeUnit.SECONDS);
+        }, FancyNpcsPlugin.get().getFancyNpcConfig().getRemoveNpcsFromPlayerlistDelay(), TimeUnit.MILLISECONDS);
 
         update(player);
     }

implementation_1_20_4/src/main/java/de/oliver/fancynpcs/v1_20_4/Npc_1_20_4.java

@@ -130,7 +130,7 @@ public void spawn(Player player) {
         FancyNpcsPlugin.get().getNpcThread().schedule(() -> {
             ClientboundPlayerInfoRemovePacket playerInfoRemovePacket = new ClientboundPlayerInfoRemovePacket(List.of(npc.getUUID()));
             serverPlayer.connection.send(playerInfoRemovePacket);
-        }, 2, TimeUnit.SECONDS);
+        }, FancyNpcsPlugin.get().getFancyNpcConfig().getRemoveNpcsFromPlayerlistDelay(), TimeUnit.MILLISECONDS);
 
         update(player);
     }

implementation_1_20_6/src/main/java/de/oliver/fancynpcs/v1_20_6/Npc_1_20_6.java

@@ -133,7 +133,7 @@ public void spawn(Player player) {
         FancyNpcsPlugin.get().getNpcThread().schedule(() -> {
             ClientboundPlayerInfoRemovePacket playerInfoRemovePacket = new ClientboundPlayerInfoRemovePacket(List.of(npc.getUUID()));
             serverPlayer.connection.send(playerInfoRemovePacket);
-        }, 2, TimeUnit.SECONDS);
+        }, FancyNpcsPlugin.get().getFancyNpcConfig().getRemoveNpcsFromPlayerlistDelay(), TimeUnit.MILLISECONDS);
 
         update(player);
     }

implementation_1_21_1/src/main/java/de/oliver/fancynpcs/v1_21_1/Npc_1_21_1.java

@@ -134,7 +134,7 @@ public void spawn(Player player) {
         FancyNpcsPlugin.get().getNpcThread().schedule(() -> {
             ClientboundPlayerInfoRemovePacket playerInfoRemovePacket = new ClientboundPlayerInfoRemovePacket(List.of(npc.getUUID()));
             serverPlayer.connection.send(playerInfoRemovePacket);
-        }, 2, TimeUnit.SECONDS);
+        }, FancyNpcsPlugin.get().getFancyNpcConfig().getRemoveNpcsFromPlayerlistDelay(), TimeUnit.MILLISECONDS);
 
         update(player);
     }

src/main/java/de/oliver/fancynpcs/FancyNpcsConfigImpl.java

@@ -62,6 +62,12 @@ public class FancyNpcsConfigImpl implements FancyNpcsConfig {
      */
     private int visibilityDistance;
 
+    /**
+     * The delay in ticks to remove NPCs from the player list.
+     * Increase this value if you have problems with skins not loading correctly when joining or switching worlds.
+     */
+    private int removeNpcsFromPlayerlistDelay;
+
     /**
      * The commands that are blocked for NPCs in the message.
      */
@@ -106,6 +112,9 @@ public void reload() {
         visibilityDistance = (int) ConfigHelper.getOrDefault(config, "visibility_distance", 20);
         config.setInlineComments("visibility_distance", List.of("The distance at which NPCs are visible."));
 
+        removeNpcsFromPlayerlistDelay = (int) ConfigHelper.getOrDefault(config, "remove_npcs_from_playerlist_delay", 2000);
+        config.setInlineComments("remove_npcs_from_playerlist_delay", List.of("The delay in ticks to remove NPCs from the player list. Increase this value if you have problems with skins not loading correctly when joining or switching worlds."));
+
         blockedCommands = (List<String>) ConfigHelper.getOrDefault(config, "blocked_commands", Arrays.asList("op", "ban"));
         config.setInlineComments("blocked_commands", List.of("The commands that are blocked for NPCs in the message."));
 
@@ -168,6 +177,10 @@ public int getVisibilityDistance() {
         return visibilityDistance;
     }
 
+    public int getRemoveNpcsFromPlayerlistDelay() {
+        return removeNpcsFromPlayerlistDelay;
+    }
+
     public List<String> getBlockedCommands() {
         return blockedCommands;
     }