Road schematics lose Player Head textures and Banner patterns during road generation

Server Implementation

Paper

Server Version

1.21.11

Describe the bug

Actual server version: 26.1.2
I selected 1.21.11 because 26.1.2 is not listed in the form.

When PlotSquared generates roads from road schematics, Player Heads and Banners lose their custom block data.

After regenerating the world:

• Player Heads become default Steve heads.
• Banners lose their patterns and revert to their base appearance.

However, the generated schematic files seem to be correct. If I manually paste the same schematics from genroadschematics/ with FastAsyncWorldEdit, the Player Head textures and Banner patterns are restored correctly.

So the issue seems to happen during PlotSquared road generation, not during schematic creation.

This may be related to #4026, but the issue still happens on 7.5.13-Premium.

To Reproduce

1. Create a PlotSquared world.
2. Build roads containing custom Player Heads and patterned Banners.
3. Run /plot createroadschematic.
4. Delete the world.
5. Generate the world again using the generated road schematics.
6. Check the generated roads.

Expected behaviour

Player Heads should keep their custom textures.

Banners should keep their patterns.

The generated roads should match the original roads.

Screenshots / Videos

https://youtu.be/Y8xNN2G-En4?si=-MzmHmawaEcu0xu7

Error log (if applicable)

No console error.

Plot Debugpaste

/plot debugpaste fails with:

Server returned status: 413 Entity Too Large

Alternative debug information:

• Spark: https://spark.lucko.me/dQl8NwSRn9
• Full logs: https://mclo.gs/Vp5xbfD
• PlotSquared settings: https://pastes.dev/tZSSxV8ji0
• PlotSquared worlds: https://pastes.dev/ZHHRfSzsIj
• FAWE config: https://pastes.dev/NqkwmP1Jxs

PlotSquared Version

7.5.13-Premium

Checklist

• I tried to include a Plot debugpaste, but it fails with 413 Entity Too Large.
• I am using the newest build from https://www.spigotmc.org/resources/77506/ and the issue still persists.

Anything else?

The issue was reproduced with only these plugins installed:

• plotsquared-bukkit-7.5.13-Premium
• FastAsyncWorldEdit-Paper-2.15.2
• worlds-4.2.2-all

Example Player Head block data:

minecraft:player_head[profile={id: [I; 67411088, -739686879, -1666252800, -1432022127], name: "", properties: [{name: "textures", value: "eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNTAzYTk0ZGY4YzNjZTlhZjY2NGE3MzkyN2Q1NzhhOGRjN2YyZjc3ZmNkNmI1MzM4MjFjOGViODdlYTQzZmMzNSJ9fX0="}]}]

Example Banner block data:

minecraft:black_banner[banner_patterns=[{color: "red", pattern: "minecraft:border"}, {color: "white", pattern: "minecraft:half_horizontal_bottom"}]]

Schematics roads file: schematics.zip

Start with the /plot createroadschematic flow and the road-generation path that reads schematics from genroadschematics/. Compare that path with manually pasting the same files using FastAsyncWorldEdit, focusing on preservation of Player Head profile data and Banner patterns; done means regenerated roads retain both kinds of custom block data.