Problem with java netty and Timers

[narrow sable]

<@&987246452180930620> please have a look, thanks.

[worldly canyon]

no place rn

have to make another message wait

I dispatch every stuffs by switch

public void dispatchServiceActivity(ChannelHandlerContext ctx, ByteBuf buf)
    {
        var activity = new ServiceActivity(ctx);
        byte id = buf.readByte();
        switch (id)
        {
            case ServiceActivity.move -> {
                //future: check collision etc
                var player = activity.getMovePlayer(buf,server.players);
                server.playerToMove.add(player);
            }
            default -> System.out.println("Activity, Wrong id: "+id);
        }
    }
``` thats my system, I m just addint it to list and it should do it 20 times per second with timer

but

i dont know why, but there are issue, it updates only at time when i send another packets.

Its very crazy cause Im clearing this list very fast

at client it should update very fast too

cause its just

public void serviceMovement(ByteBuf buf, ChannelHandlerContext ctx)
    {
        byte id = buf.readByte();
        var activity = new ServiceActivity(ctx);
        switch (id)
        {
            case ServiceActivity.move -> {
             //   activity.getMovePlayer(buf,client.gamePlayers);
            }
            case ServiceActivity.bMove -> {
                activity.readMovePlayer(buf,client.gamePlayers);
            }


            default -> System.out.println("Wrong packet, ServiceActivity");
        }
    }