From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 5 Jul 2020 14:59:31 -0400
Subject: [PATCH] Don't check chunk for portal on world gen entity add


diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index e34f3c24be9defab765aaf7c54225759ad5ce60a..6b3e521dac8823ac8103f5aa2b1ea62edb260a72 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -2941,7 +2941,7 @@ public abstract class EntityLiving extends Entity {
         Entity entity = this.getVehicle();
 
         super.stopRiding(suppressCancellation); // Paper - suppress
-        if (entity != null && entity != this.getVehicle() && !this.world.isClientSide) {
+        if (entity != null && entity != this.getVehicle() && !this.world.isClientSide && entity.valid) { // Paper - don't process on world gen
             this.a(entity);
         }