Proxy will just show the skin for other players and in the tablist, and not for myself

So, i was coding a proxy, that allows you to join a server (e.g.: Hypixel) with another account, without having to relaunch the game. But, if i join the proxy, i get connected to the target server, but, for me, i don't have a skin. Other players can see me just fine, but i myself can't. Is this even possible? Here is my code, if that helps:

var mc = require( 'minecraft-protocol');
var server = mc.createServer({
	'keepAlive': false,
	'max-players': 1,
	'motd': 'Proxy-Test',
	'version': '1.8.8',
	'online-mode': true,
	'port': '25576'
});


server.on('login', client => {
		const remote = mc.createClient({
			keepAlive: false,
			host: 'myserver.net',
			port: '25565',
			username: "obviouslynotareal@email.com",
			password: "password!",
			version: '1.8.8'
		});


		[remote, client].forEach((value, index, array) => {
			const opposite = array[index === 0 ? 1 : 0];
			value
				.on('end', () => opposite.end('Disconnected'))
				.on('raw', (buffer, metadata) => {
					if (metadata.state === 'play') opposite.writeRaw(buffer);
				});
		});
		
		}
	});
console.log('Started proxy on port '+server.port);

Any help is appreciated! I just can't figure this out for my life.

Kind regards,
Tuxorials

Start with the JavaScript proxy code in the issue, especially the login handler and the raw packet forwarding between client and remote. Determine whether the relevant skin or tab-list packets are forwarded in both directions, then verify the behavior with a 1.8.8 client and target server.