1.21.1 on 1.21.3 server - Shift-clicking the "Destroy Item" slot in the creative inventory deletes the items server-side but not client-side, causing a desync

[Oublions]

'/viaversion dump' Output

https://dump.viaversion.com/c9ec4ce7b79c18c65975c9865833a744fe45d395b433bc372714d599c65a1c5e

Server/Client Error

https://mclo.gs/Y46pDfb

I do not have any error but for reference, here we go!

Bug Description

Literally the MC-276292 bug, but only on backwards versions. On the native server versions, its working nicely.

Steps to Reproduce

• Have a 1.21.3 PaperMC server with ViaVersion and ViaBackwards latest.
• Connect in 1.21.1.
• Get in creative.
• Try to clear your inventory with shift-clicking the "Destroy Item" slot in the creative inventory.
• and tada! the inventory is cleared in server-side. Client-side, you still have your inventory.

Expected Behavior

It should clears inventory.

Additional Server Info

I use latest versions of every plugins I have.

My build was from Spigot and tried out your snapshot ViaVer build, same bug. Also, an additionnal error shows.

[23:08:16 ERROR]: [ViaVersion] Error initializing plugin 'ViaVersion-5.2.1-SNAPSHOT.jar' in folder 'plugins' (Is it up to date?)
java.lang.NoSuchFieldError: Class com.viaversion.viaversion.api.type.types.version.Types1_21_4 does not have member field 'com.viaversion.viaversion.api.minecraft.entitydata.types.EntityDataTypes1_21 ENTITY_DATA_TYPES'
        at ViaBackwards-5.2.0.jar/com.viaversion.viabackwards.protocol.v1_21_4to1_21_2.rewriter.EntityPacketRewriter1_21_4.<init>(EntityPacketRewriter1_21_4.java:43) ~[ViaBackwards-5.2.0.jar:?]
        at ViaBackwards-5.2.0.jar/com.viaversion.viabackwards.protocol.v1_21_4to1_21_2.Protocol1_21_4To1_21_2.<init>(Protocol1_21_4To1_21_2.java:58) ~[ViaBackwards-5.2.0.jar:?]
        at ViaBackwards-5.2.0.jar/com.viaversion.viabackwards.api.ViaBackwardsPlatform.init(ViaBackwardsPlatform.java:148) ~[ViaBackwards-5.2.0.jar:?]
        at ViaBackwards-5.2.0.jar/com.viaversion.viabackwards.BukkitPlugin.lambda$new$0(BukkitPlugin.java:38) ~[ViaBackwards-5.2.0.jar:?]
        at ViaVersion-5.2.1-SNAPSHOT.jar/com.viaversion.viaversion.ViaManagerImpl.init(ViaManagerImpl.java:115) ~[ViaVersion-5.2.1-SNAPSHOT.jar:?]
        at ViaVersion-5.2.1-SNAPSHOT.jar/com.viaversion.viaversion.ViaVersionPlugin.onLoad(ViaVersionPlugin.java:88) ~[ViaVersion-5.2.1-SNAPSHOT.jar:?]
        at io.papermc.paper.plugin.storage.ServerPluginProviderStorage.processProvided(ServerPluginProviderStorage.java:59) ~[paper-1.21.3.jar:1.21.3-81-da71382]
        at io.papermc.paper.plugin.storage.ServerPluginProviderStorage.processProvided(ServerPluginProviderStorage.java:18) ~[paper-1.21.3.jar:1.21.3-81-da71382]
        at io.papermc.paper.plugin.storage.SimpleProviderStorage.enter(SimpleProviderStorage.java:39) ~[paper-1.21.3.jar:1.21.3-81-da71382]
        at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter(LaunchEntryPointHandler.java:40) ~[paper-1.21.3.jar:1.21.3-81-da71382]
        at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:561) ~[paper-1.21.3.jar:1.21.3-81-da71382]
        at net.minecraft.server.dedicated.DedicatedServer.initServer(DedicatedServer.java:289) ~[paper-1.21.3.jar:1.21.3-81-da71382]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1235) ~[paper-1.21.3.jar:1.21.3-81-da71382]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:340) ~[paper-1.21.3.jar:1.21.3-81-da71382]
        at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]

Clip : https://imgur.com/a/rrqbXQU

Checklist

• Via plugins are only running on EITHER the backend servers (e.g. Paper) OR the proxy (e.g. Velocity), not on both.
• I have included a ViaVersion dump.
• If applicable, I have included a paste (not a screenshot) of the error.
• I have tried a build from https://ci.viaversion.com/ and the issue still persists.

[Barvalg]

Please update all Via* plugins from https://ci.viaversion.com/.In case the issue still persists send the new dump and the issue will be reopened

[FlorianMichael]

Don't insult our bot, he is correct. Please update to dev builds from https://ci.viaversion.com/

[Oublions]

Please read. I tried. Same error, same shit.

[FlorianMichael]

Send a new dump url then

[Oublions]

https://dump.viaversion.com/ad83e05bd6953a2db4c7e7568dc40090a3809557cc1749e789145b67b197e1f4

[Barvalg]

Please update all Via* plugins from https://ci.viaversion.com/.In case the issue still persists send the new dump and the issue will be reopened

[Oublions]

Its updated 💀

[FlorianMichael]

You need to update ViaBackwards as well

[Oublions]

there is no build at https://ci.viaversion.com/

[FlorianMichael]

https://ci.viaversion.com/view/ViaBackwards/job/ViaBackwards/

[Oublions]

Still the same bug. https://dump.viaversion.com/84c30283a5ccd23ef313abb03eedf01812e2cb2d0564d7f4a62fa3e696235b54

And they should add ViaBackwards and ViaRewind on the homepage by the way of the jenkins website lol. It could save some time.

[Barvalg]

[FlorianMichael]

There are, you just have to read.

I can't reproduce the exception issue when using the latest ci from both ViaVersion and ViaBackwards, so you either just uploaded a new dump without doing testing again or something else in your setup is wrong.