• This issue is not solved in a development build

Describe the bug
Cannot intercept ClientboundChunksBiomesPacket (CHUNKS_BIOMES)

To Reproduce
Try this code:

public class BiomesPacketListener extends PacketAdapter {

    public BiomesPacketListener(Plugin plugin) {
        super(plugin, ListenerPriority.NORMAL, PacketType.Play.Server.CHUNKS_BIOMES);

        System.out.println("Yes, this part actually happened"); // this message can be seen in console
    }

    @Override
    public void onPacketReceiving(PacketEvent event) {
        System.out.println(event.getPacketType()); // this message does not occur
    }

    @Override
    public void onPacketSending(PacketEvent event) {
        System.out.println(event.getPacketType()); // this message does not occur
    }
}

Expected behavior
Upon logging into the server, or a player loading chunks, or changing dimensions, I expected to intercept this packet.

Screenshots
If applicable, add screenshots to help explain your problem.

Version Info
Dump and log attached
dump-2023-06-25_19.10.39.txt
latest.log

Registering onEnable before joining the server:

I don't mean to be pushy, no time constraint, but if you can figure out what silly thing I did wrong or implement a fix I got a $15 one-time sponsorship for @dmulloy2.

that packet is actually only sent by Minecraft when you execute the /fillbiome command, MAP_CHUNKS is what we want for modifying biomes still!