In 25w07a, a “useless” field was removed from the network protocol related to chunks, but the space for this field is still “reserved”.
This issue isn’t really relevant ingame - it is relevant when looking at the network protocol sent between client and server. To reproduce this issue, you have to look at the bytes sent from the Minecraft server to the Minecraft client. But, you can quickly see the issue by looking at the (decompiled) code - as long as you know how to read it.
I know this is a technical issue rather than a problem with gameplay, but technical problems have been solved in the past, and this is a fairly simple one.
In 25w07a, a “useless” field was removed from the network protocol related to chunks, but the space for this field is still “reserved”.
This issue isn’t really relevant ingame - it is relevant when looking at the network protocol sent between client and server. To reproduce this issue, you have to look at the bytes sent from the Minecraft server to the Minecraft client. But, you can quickly see the issue by looking at the (decompiled) code - as long as you know how to read it.
I know this is a technical issue rather than a problem with gameplay, but technical problems have been solved in the past, and this is a fairly simple one.