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[Bug]: DecoderException while connecting to Minecraft Server play.mixelpixel.net #825

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mfilser opened this issue Nov 10, 2024 · 15 comments
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@mfilser
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mfilser commented Nov 10, 2024

What happened?

When I connect to the Minecraft Server play.mixelpixel.net the connection aborts and I get following error:
io.netty.handler.codec.DecoderException: java.io.IOException: Packet play/clientbound/minecraft:custom_payload (class_2658) was larger than I expected, found 15 bytes extra whilst reading packet clientbound/minecraft:custom_payload

grafik

I am using journeymap-fabric-1.21.1-6.0.0-beta.29.jar.
After removing Journeymap from the mods folder, I can connect to the Server and play on it.

Mod Loader

Fabric

Minecraft Version

1.21.x

Version

6.0.0

Relevant log output

latest.log
journeymap.log

@mfilser mfilser added the a:bug label Nov 10, 2024
@mysticdrew
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Is this a server that supports multiple versions of minecraft?

If so, are you able to connect using Minecraft and Journeymap for mc1.20.1?

@mfilser
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mfilser commented Nov 10, 2024

Unfortunately the Server only runs with Minecraft 1.21.1 to 1.21.3

@mysticdrew
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mysticdrew commented Nov 10, 2024

This seems like an issue with the server, with a packet they are sending. Might be hard to debug.
Does it work with JM and MC for 1.21.3? or same results as JM with 1.21.1?

@mfilser
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mfilser commented Nov 10, 2024

I tested it with 1.21.3, I got the same error.
Here's attached the 2 log files:
journeymap.log
latest.log

@mysticdrew
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Yes, but what about 1.21.1, since your server allows you to connect with that minecraft version?

@mfilser
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mfilser commented Nov 10, 2024

Is this a server that supports multiple versions of minecraft?

If so, are you able to connect using Minecraft and Journeymap for mc1.20.1?

I didn't think of to write that I was playing on that Minecraft Server on version 1.20.2 and didn't have any issues, JourneyMap was running on 1.20.2 very well.
I really miss this mod a lot on 1.21.1 😉

@mfilser
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mfilser commented Nov 10, 2024

Yes, but what about 1.21.1, since your server allows you to connect with that minecraft version?

This is the Minecraft Client version I have the issue I described in this Issue.
It's not running on 1.21.1

@mysticdrew
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Yes, but what about 1.21.1, since your server allows you to connect with that minecraft version?

This is the Minecraft Client version I have the issue I described in this Issue. It's not running on 1.21.1

I understand. What I am asking is if you can test with 1.21.1 to see if it works.

@mfilser
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mfilser commented Nov 10, 2024

I can connect to this server without JourneyMap in my mods folder, with Fabric and Vanilla Minecraft version

@mysticdrew
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I can connect to this server without JourneyMap in my mods folder, with Fabric and Vanilla Minecraft version

What about with journeymap for 1.21.1 and minecraft 1.21.1? Please see if that works for you so I know if it is an issue with 1.21.3 or all of journeymap 6.0.0

@mfilser
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mfilser commented Nov 10, 2024

I tested this versions successfully:

  • Vanilla 1.21.1
  • Vanilla 1.21.3
  • Fabric 1.21.1 without JourneyMap
  • Fabric 1.21.3 without JourneyMap

unsuccessfully to connect:

  • Fabric 1.21.1 with JourneyMap 6.0.0-beta29 works not
  • Fabric 1.21.3 with JourneyMap 6.0.0-beta29 works not

Are there some version's and combinations I should test too?

@mysticdrew
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Does beta.27 work? any minecraft version.

@mfilser
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mfilser commented Nov 24, 2024

I am happy to test for you.
Here are my results:

JourneyMap is not working (on that server mentioned above):

  • Fabric 1.21.1, JorneyMap 6.0.0-beta27
  • Fabric 1.21.1, JorneyMap 6.0.0-beta29
  • Fabric 1.21.3, JorneyMap 6.0.0-beta27
  • Fabric 1.21.3, JorneyMap 6.0.0-beta29

JourneyMap is working (on that server mentioned above):

  • Forge 1.21.1, JourneyMap 6.0.0-beta27
  • Forge 1.21.1, JourneyMap 6.0.0-beta29
  • Forge 1.21.3, JourneyMap 6.0.0-beta29

So I think it's an issue with Fabric 1.21.1 and 1.21.3 where JourneyMap isn't working?
As mentioned before, Fabric 1.20.2 was working (but the Server was updating to 1.21.1 about a month ago).

As I have all my other mods running on Fabric I would love to have a running version for JourneyMap too 🙂
I could also offer to help in development / debugging as I am a Java developer for more than 15 years too.

@mysticdrew
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Oh, that is interesting that forge is working just fine. Thanks for checking on that. I'll have to attempt to connect with some debugging logic to see what is going on.

@mfilser
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mfilser commented Nov 25, 2024

It was an interesting result for me too.
Your welcome, let me know if I can do anything else.
Thank you in advance for your debugging, I keep the fingers crossed you find and hopefully can change it 🙂

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