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

[mfilser]

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

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

[mysticdrew]

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]

Unfortunately the Server only runs with Minecraft 1.21.1 to 1.21.3

[mysticdrew]

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]

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

[mysticdrew]

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

[mfilser]

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]

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]

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]

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

[mysticdrew]

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]

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?