Laravel problem with private channel?

Question

Laravel

I'm not getting a private message on my second channel. (although it works for public ones)
created a channel in channels and wrote a comparison for the test:

Broadcast::channel('post.{id}', function ($user, $id) {
 // here only authorized users
    return 1 === 1;
});

further replaced from .channel to .private in JS

var channel = Echo.private('post.' + this.post.id);

also changed to PrivateChannel

public function broadcastOn()
    {
        return new PrivateChannel('post.'.$this->comment->post->id);
    }

It doesn't even output anything to the console. And the test launch from the pusher does not bring results. I logged in with two authorized under different browsers and accounts. and another one from a private tab without authorization. Doesn't come anywhere.
Although now changing in Js and in the channel itself from private to channel, everything will work.
If there is anything else that needs to be thrown off - please tell me, otherwise I could miss something