moonrise collision optimisations makes changes to vanilla vehavior

Expected behavior

the tnt should be aligned along the chests (vanilla behavior)

Observed/Actual behavior

the tnt are not aligned along the chests (actual behavior)

Steps/models to reproduce

steps to reproduce :

• paste the schematic in the world (using worldedit or litematica)
• if you are using litematica, be sure that the barrel is successfully pasted with all its content
• activate the top noteblock and see

Here are the schematics :

Duper.zip

Plugin and Datapack List

plugins
[13:44:04 INFO]: ℹ Server Plugins (0):
datapack list
[13:44:15 INFO]: There are 3 data pack(s) enabled: [vanilla (built-in)], [file/bukkit (world)], [paper (built-in)]
[13:44:15 INFO]: There are no more data packs available

Paper version

version
[13:45:57 INFO]: Checking version, please wait...
[13:45:58 INFO]: This server is running Paper version 1.21.11-DEV-main@81b9122 (1970-01-01T00:00:00Z) (Implementing API version 1.21.11-R0.1-SNAPSHOT)
You are running the latest version

This server is running Paper version 1.21.11-99-main@81b9122 (2026-01-20T19:08:30Z) (Implementing API version 1.21.11-R0.1-SNAPSHOT)

Other

With the dev server if i remove all the features patches the bug disappears
And when I put back the feature patch 0001-Moonrise-optimisation-patches.patch it reappears

as I can see this issue is known since 1.20 and still isn't fixed.
WHAT ARE YOU WAITING FOR ?

[electronicboy]

#10206 (comment)

it wasn't merged

[mbax]

it wasn't merged

You were linked to a specific comment.

minecraft vanilla works very fine unlike papers "fixes"

[mbax]

minecraft vanilla works very fine unlike papers "fixes"

Nobody is preventing you from running vanilla. Do you have a Mojang ticket to share here, as the linked comment said that's where a report should go?

[Spottedleaf]

1f1406f