[rendering error] Caves and Cliffs backport

[Cixon]

Issue

Randomly roaming the overworld can sometimes render nasty visual errors like seen in the github issue below.

In addition to this, some chunks do not render properly. They appear black or hallowed out and when you try to update the chunk by breaking a block in it or placing a torch, the client crashes.

Attachments & Details reinstated here;

Reforged-Mods/Terrestria-Reforged#5 (comment)

CurseForge Mods list

BetterNether Reforged
https://www.curseforge.com/minecraft/mc-mods/betternether-reforged/files/3460037

Caves and Cliff backport v6.3
CaveBiomeAPI v1.3.7 (dependacy of Cave Cliff)
Cinderscapes Reforged v1.0.2
Terrestria Reforged v1.0.1
Terraformed Api Reforged v1.0.2
(dependacy of Terrestria & Cinderscapes)
Fabric's Biome Api Reforged v1.0.4
(dependacy of Terrestria & Cinderscapes)

System Information

Windows 10 20h2
Amd CPU
Nvidia RTX 3060

• Java Version: 1.16.5
• Forge Version: 36.2.4
• Sodium Reforged Version: 2.9.10