Custom packets broken

[NovaProtocol]

I think custom packets are broken or something

This is the original

class BlockChangePacket(Packet):
    @staticmethod
    def get_id(context):
        return 0x0C if context.protocol_later_eq(755) else \
               0x0B if context.protocol_later_eq(721) else \
               0x0C if context.protocol_later_eq(550) else \
               0x0B if context.protocol_later_eq(332) else \
               0x0C if context.protocol_later_eq(318) else \
               0x0B if context.protocol_later_eq(67) else \
               0x24 if context.protocol_later_eq(62) else \
               0x23

    packet_name = 'block change'
    definition = [
        {'location': Position},
        {'block_state_id': VarInt}]
    block_state_id = 0

    # For protocols before 347: an accessor for (block_state_id >> 4).
    @property
    def blockId(self):
        return self.block_state_id >> 4

    @blockId.setter
    def blockId(self, block_id):
        self.block_state_id = (self.block_state_id & 0xF) | (block_id << 4)

    # For protocols before 347: an accessor for (block_state_id & 0xF).
    @property
    def blockMeta(self):
        return self.block_state_id & 0xF

    @blockMeta.setter
    def blockMeta(self, meta):
        self.block_state_id = (self.block_state_id & ~0xF) | (meta & 0xF)

    # This alias is retained for backward compatibility.
    blockStateId = attribute_alias('block_state_id')

And this is literally the same code but moved to an external file

    class BlockChangePacket(Packet):
        @staticmethod
        def get_id(context):
            return 0x0C if context.protocol_later_eq(755) else \
                0x0B if context.protocol_later_eq(721) else \
                0x0C if context.protocol_later_eq(550) else \
                0x0B if context.protocol_later_eq(332) else \
                0x0C if context.protocol_later_eq(318) else \
                0x0B if context.protocol_later_eq(67) else \
                0x24 if context.protocol_later_eq(62) else \
                0x23

        packet_name = 'block change'
        definition = [
            {'location': Position},
            {'block_state_id': VarInt}]
        block_state_id = 0

        # For protocols before 347: an accessor for (block_state_id >> 4).
        @property
        def blockId(self):
            return self.block_state_id >> 4

        @blockId.setter
        def blockId(self, block_id):
            self.block_state_id = (self.block_state_id & 0xF) | (block_id << 4)

        # For protocols before 347: an accessor for (block_state_id & 0xF).
        @property
        def blockMeta(self):
            return self.block_state_id & 0xF

        @blockMeta.setter
        def blockMeta(self, meta):
            self.block_state_id = (self.block_state_id & ~0xF) | (meta & 0xF)

    # This alias is retained for backward compatibility.
    blockStateId = attribute_alias('block_state_id')

In theory, the following code should print both but for some reason, only the 1 prints. I tried tinkering but i can't make it work. Pls help

        def block_listener(spawn_packet):
            print(f"1-{spawn_packet}")

        self.connection.register_packet_listener(block_listener, clientbound.play.BlockChangePacket)

        def block_listener2(spawn_packet):
            print(f"2-{spawn_packet}")

        self.connection.register_packet_listener(block_listener2,minecraft_packets.Clientbound.BlockChangePacket)

Testing this via 1.12.2
Vanilla

Yes, i tried removing the first one and tested other packets. Same