The main problem is that the “min_threshold” for both wart block is too high for them to generate ("min_threshold": 1.17). For the sake of testing, let’s tone that down to 0.17 which is a little overkill but will allow us to spot the wart blocks easier, here is a datapack for 1.21.8 that does exactly that: https://drive.google.com/drive/folders/1tkDvNSBYm-6fVCnhs3bRk2E96Tk8Yzzx?usp=sharing
I’ve also noticed that although the code will work, it just doesn’t work like before; The wart blocks seem to generate in a circular shape unlike pre-1.18 where they generated scattered everywhere on the floor even after changing that value to a more realistic 0.54 which tries to mimic the old behaviour. This might be a design choice by the devs as this is the same code used to generate netherrack in the floor of both forests, the same differance exists for that.
This is a pre-1.18 netherrack patch (Largest I could find):
[media: pre-1.18 netherrack patches.png]
And this is a post-1.18 netherrack patch (Also largest I could find):
[media: post-1.18 netherrack patch.png]
While this is a pre-1.18 wart block patch:
[media: 2025-08-10_01.41.45.png]
And this is a post-1.18 wart block patch when “min_threshold”= 0.54:
Medhyoub Yassin
I found a fix for this issue!
The main problem is that the “min_threshold” for both wart block is too high for them to generate ("min_threshold": 1.17). For the sake of testing, let’s tone that down to 0.17 which is a little overkill but will allow us to spot the wart blocks easier, here is a datapack for 1.21.8 that does exactly that: https://drive.google.com/drive/folders/1tkDvNSBYm-6fVCnhs3bRk2E96Tk8Yzzx?usp=sharing
I’ve also noticed that although the code will work, it just doesn’t work like before; The wart blocks seem to generate in a circular shape unlike pre-1.18 where they generated scattered everywhere on the floor even after changing that value to a more realistic 0.54 which tries to mimic the old behaviour. This might be a design choice by the devs as this is the same code used to generate netherrack in the floor of both forests, the same differance exists for that.
This is a pre-1.18 netherrack patch (Largest I could find):
And this is a post-1.18 netherrack patch (Also largest I could find):
While this is a pre-1.18 wart block patch:
And this is a post-1.18 wart block patch when “min_threshold”= 0.54: