Помогите Появление непонятных теней (возможно непрогрузка чанков)

Никаких проблем не было.
Этот патч и убирает просчёт света, только на этапе загрузки чанка.

Code:

From c25f3eb3b485b248644ee550c46a715cda1a1f57 Mon Sep 17 00:00:00 2001
From: Thinkofdeath <[EMAIL]thethinkofdeath@gmail.com[/EMAIL]>
Date: Mon, 2 Dec 2013 23:42:09 +0000
Subject: [PATCH] Fix some chunks not being sent to the client


diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 1b9826c..39c61e1 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -1043,7 +1043,15 @@ public class Chunk {
     }

     public boolean isReady() {
-        return this.r && this.done && this.lit;
+        // Spigot Start
+        /*
+         * As of 1.7, Mojang added a check to make sure that only chunks which have been lit are sent to the client.
+         * Unfortunately this interferes with our modified chunk ticking algorithm, which will only tick chunks distant from the player on a very infrequent basis.
+         * We cannot unfortunately do this lighting stage during chunk gen as it appears to put a lot more noticeable load on the server, than when it is done at play time.
+         * For now at least we will simply send all chunks, in accordance with pre 1.7 behaviour.
+         */
+        return true;
+        // Spigot End
     }

     public boolean j() {
--
2.9.3

А random-light-updates работает не так быстро, как ожидается, и из-за этого он скорее бесполезен, чем полезен.