Is there an existing issue for this?
Are you using the latest Structurize Version?
Did you check on the Wiki? or ask on Discord?
Minecraft Version
1.21
Structurize Version
1.0.832-1.21.1
MineColonies Version (if related bug)
1.1.1374-1.21.1
Related Mods and their Versions
Error showed up on both Wolfcraft server and clean instance.
Current Behavior
[19Aug2026 20:14:04.860] [Server thread/WARN] [minecolonies/]: Schematic with invalid blockentity data for block:Block{minecraft:dark_oak_log}[axis=y] in pack:Medieval Dark Oak schematic:minerx2top.blueprint blockentitydata:{}
I posted this line from our console log in discord today. Moobien asked me to test in a clean instance. It showed up there too, with even more named schematics.
Discord convo: https://discord.com/channels/139070364159311872/724810039281451028/1539921090405732433
He checked and posted these:
Expected Behavior
Not to do that? I don't even understand what's happening.
Reproduction Steps
To test I made a basic instance,
Found a Medieval Dark Oak abandoned village and claimed it,
Pasted in a level one mine and house and let a citizen spawn.
Checked the logs once they reached the shaft bottom and started digging outwards.
Profit.
Logs
https://gist.github.com/kezmodius/46e4b72a04f23fee0d25fe95176e9cdd
Anything else?
Train said:
It seems to be a log, which somehow got NBT data
Not sure whether it is the tag anchor, if so, this is indeed a bug. It feels like it tries to apply the empty NBT in “entity” to a block which doesn’t have NBT (not sure whether entity should have been omitted, or whether it should not have tried applying it)
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Is there an existing issue for this?
Are you using the latest Structurize Version?
I am also running the latest versions of other mods that are part of my problem.
Did you check on the Wiki? or ask on Discord?
Minecraft Version
1.21
Structurize Version
1.0.832-1.21.1
MineColonies Version (if related bug)
1.1.1374-1.21.1
Related Mods and their Versions
Error showed up on both Wolfcraft server and clean instance.
Current Behavior
[19Aug2026 20:14:04.860] [Server thread/WARN] [minecolonies/]: Schematic with invalid blockentity data for block:Block{minecraft:dark_oak_log}[axis=y] in pack:Medieval Dark Oak schematic:minerx2top.blueprint blockentitydata:{}
I posted this line from our console log in discord today. Moobien asked me to test in a clean instance. It showed up there too, with even more named schematics.
Discord convo: https://discord.com/channels/139070364159311872/724810039281451028/1539921090405732433
He checked and posted these:
Expected Behavior
Not to do that? I don't even understand what's happening.
Reproduction Steps
To test I made a basic instance,
Found a Medieval Dark Oak abandoned village and claimed it,
Pasted in a level one mine and house and let a citizen spawn.
Checked the logs once they reached the shaft bottom and started digging outwards.
Profit.
Logs
https://gist.github.com/kezmodius/46e4b72a04f23fee0d25fe95176e9cdd
Anything else?
Train said:
It seems to be a log, which somehow got NBT data
Not sure whether it is the tag anchor, if so, this is indeed a bug. It feels like it tries to apply the empty NBT in “entity” to a block which doesn’t have NBT (not sure whether entity should have been omitted, or whether it should not have tried applying it)
Footer
Viewers