mojira.dev
MC-130303

use "/data merge" on a sign crash minecraft.

Hello.
I explain badly, If you need more information ask me

 

Use "/data merge block" on a sign cause a crash.:

Internal Exception io.netty.hander.codec.DecoderExecption: h: Loading NBT Data

 

To reproduce :

  1. Place a sign

  2. Use a /data merge block on sign
    Exemple :

    /data merge block ~ ~ ~ {Text3:"{\"text\":\"Test\",\"bold\":true,\"italic\":true,\"color\":\"dark_green\"}"}

    3. made several times /data merge on a sign.

    4. Look at the difference with "/data get block"

Linked issues

Attachments

Comments 3

Thank you for your report!
However, this issue is a Duplicate of MC-123194.

If you have additional information, please add it to that report.

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@bemoty Are you sure? MC-123194 is about «/data get»; this bug is about «/data merge».
Additional information: this bug causes on a server.

@Bemoty

Its seems /data merge doesn't seem to override the data in signs as it probably should. it just add the data onto the already existing data causing very big nbt data per sign affected. I have a world where the signs updated with that command just get heavier and heavier to render for the engine. causing significant performances issues. I have a video of me removing those 4 signs in my world, which allows my fps to go from around 20 to 400 fps.

https://www.youtube.com/watch?v=JueQiTjLBR0&feature=youtu.be

and this is still an issue in Minecraft 1.13-pre1

I would say that MC-123194 is the result of problems with this /data merge

Hardel

(Unassigned)

Unconfirmed

Minecraft 18w21b

Retrieved